Macbook Pro won't startup after Update

I guess everyone has been having problems around here. But I really have no clue what to do. I did not even know there was un update until I restarted. After I did it now my macbook pro won't start up. It makes that chime noise at the beginning and then it shows the apple and the spinning thing below it and I left it for 2 hours and came back and nothing had changed.
It my computer broken? Did I do something wrong? Have I lost all my stuff? Please help!

Yeah, I have had the exact same problem. it happen last friday. Also, i'm not sure if this is related or not but right before the update the computer for no reason in the middle of doing stuff it would tell me to force shut down by holding down the power button. not sure what to do. If i ship it out it will be about a 2 weeks before i get it back and if I take it in, they can't put it on the bench for about 5 days. its very frustrating and apple needs to figure something out for service.

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    org.tgwbd.driver.NullCPUPowerManagement          1.0.0d2
    com.apple.driver.AudioAUUC          1.60
    com.apple.driver.AppleHWSensor          1.9.5d0
    com.apple.iokit.IOBluetoothSerialManager          4.1.7f4
    com.apple.filesystems.autofs          3.0
    com.apple.driver.AppleHDAHardwareConfigDriver          2.4.7fc4
    com.apple.driver.AppleTyMCEDriver          1.0.2d2
    com.apple.driver.AppleHDA          2.4.7fc4
    com.apple.driver.AppleSMCPDRC          1.0.0
    com.apple.iokit.IOUserEthernet          1.0.0d1
    com.apple.Dont_Steal_Mac_OS_X          7.0.0
    com.apple.driver.ApplePolicyControl          3.4.5
    com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
    com.apple.driver.AppleLPC          1.6.3
    com.apple.driver.SMCMotionSensor          3.0.3d1
    com.apple.iokit.IOBluetoothUSBDFU          4.1.7f4
    com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport          4.1.7f4
    com.apple.driver.AppleSMCLMU          2.0.3d0
    com.apple.driver.AppleSMBusPCI          1.0.11d1
    com.apple.GeForce          8.1.6
    com.apple.driver.AppleUpstreamUserClient          3.5.12
    com.apple.nvidia.NVDAStartup          8.1.6
    com.apple.driver.AppleMuxControl          3.4.5
    com.apple.driver.AppleBacklight          170.3.5
    com.apple.driver.AppleMCCSControl          1.1.11
    com.apple.driver.AppleUSBTCButtons          237.1
    com.apple.driver.AppleUSBTCKeyEventDriver          237.1
    com.apple.driver.AppleUSBTCKeyboard          237.1
    com.apple.driver.AppleIRController          320.15
    com.apple.driver.AppleFileSystemDriver          3.0.1
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
    com.apple.BootCache          34
    com.apple.iokit.SCSITaskUserClient          3.5.6
    com.apple.driver.XsanFilter          404
    com.apple.iokit.IOAHCIBlockStorage          2.3.5
    com.apple.driver.AppleUSBHub          635.4.0
    com.apple.driver.AirPortBrcm43224          600.36.17
    com.apple.iokit.AppleYukon2          3.2.3b1
    com.apple.driver.AppleFWOHCI          4.9.9
    com.apple.driver.AppleAHCIPort          2.6.6
    com.apple.driver.AppleIntelPIIXATA          2.5.1
    com.apple.driver.AppleUSBEHCI          621.4.6
    com.apple.driver.AppleUSBUHCI          621.4.0
    com.apple.driver.AppleSmartBatteryManager          161.0.0
    com.apple.driver.AppleRTC          1.5
    com.apple.driver.AppleHPET          1.8
    com.apple.driver.AppleACPIButtons          1.8
    com.apple.driver.AppleSMBIOS          1.9
    com.apple.driver.AppleACPIEC          1.8
    com.apple.driver.AppleAPIC          1.7
    com.apple.nke.applicationfirewall          4.0.39
    com.apple.security.quarantine          2.1
    com.apple.driver.AppleIntelCPUPowerManagement          214.0.0
    com.apple.iokit.IOSerialFamily          10.0.6
    com.apple.kext.triggers          1.0
    com.apple.driver.DspFuncLib          2.4.7fc4
    com.apple.iokit.IOAudioFamily          1.9.2fc7
    com.apple.kext.OSvKernDSPLib          1.12
    com.apple.iokit.IOFireWireIP          2.2.5
    com.apple.driver.AppleHDAController          2.4.7fc4
    com.apple.iokit.IOHDAFamily          2.4.7fc4
    com.apple.iokit.IOSurface          86.0.4
    com.apple.iokit.IOBluetoothFamily          4.1.7f4
    com.apple.driver.IOPlatformPluginLegacy          1.0.0
    com.apple.driver.IOPlatformPluginFamily          5.4.1d13
    com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.1.7f4
    com.apple.driver.AppleSMC          3.1.5d4
    com.apple.nvidia.nv50hal          8.1.6
    com.apple.NVDAResman          8.1.6
    com.apple.driver.AppleGraphicsControl          3.4.5
    com.apple.driver.AppleBacklightExpert          1.0.4
    com.apple.iokit.IONDRVSupport          2.3.7
    com.apple.driver.AppleSMBusController          1.0.11d1
    com.apple.iokit.IOGraphicsFamily          2.3.7
    com.apple.driver.AppleUSBMultitouch          237.3
    com.apple.iokit.IOUSBHIDDriver          623.4.0
    com.apple.driver.AppleUSBMergeNub          621.4.6
    com.apple.iokit.IOSCSIBlockCommandsDevice          3.5.6
    com.apple.iokit.IOUSBMassStorageClass          3.5.2
    com.apple.driver.AppleUSBComposite          621.4.0
    com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.5.6
    com.apple.iokit.IOBDStorageFamily          1.7
    com.apple.iokit.IODVDStorageFamily          1.7.1
    com.apple.iokit.IOCDStorageFamily          1.7.1
    com.apple.iokit.IOATAPIProtocolTransport          3.5.0
    com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.6
    com.apple.iokit.IOUSBUserClient          630.4.4
    com.apple.iokit.IO80211Family          530.5
    com.apple.driver.AppleEFINVRAM          2.0
    com.apple.iokit.IONetworkingFamily          3.0
    com.apple.iokit.IOFireWireFamily          4.5.5
    com.apple.iokit.IOAHCIFamily          2.5.1
    com.apple.iokit.IOATAFamily          2.5.1
    com.apple.driver.AppleEFIRuntime          2.0
    com.apple.iokit.IOUSBFamily          635.4.0
    com.apple.iokit.IOHIDFamily          1.8.1
    com.apple.iokit.IOSMBusFamily          1.1
    com.apple.security.sandbox          220.3
    com.apple.kext.AppleMatch          1.0.0d1
    com.apple.security.TMSafetyNet          7
    com.apple.driver.DiskImages          345
    com.apple.iokit.IOStorageFamily          1.8
    com.apple.driver.AppleKeyStore          28.21
    com.apple.driver.AppleACPIPlatform          1.8
    com.apple.iokit.IOPCIFamily          2.8
    com.apple.iokit.IOACPIFamily          1.4
    com.apple.kec.corecrypto          1.0
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      Model Identifier:          MacBookPro3,1
      Processor Name:          Intel Core 2 Duo
      Processor Speed:          2.4 GHz
      Number of Processors:          1
      Total Number of Cores:          2
      L2 Cache:          4 MB
      Memory:          2 GB
      Bus Speed:          800 MHz
      Boot ROM Version:          MBP31.0070.B07
      SMC Version (system):          1.16f11
      Serial Number (system):          W87422HUYAM
      Hardware UUID:          00000000-0000-1000-8000-001B63A5B553
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    Erase and Reinstall OS X
    Note: This will delete all data on the disk. Back up important files before continuing.
    Erasing and then reinstalling OS X can give you a fresh start, making your computer exactly as it was whenever you received it from Apple. This can solve various problems such as corrupt system files.
    Shut down the computer by going to Apple () > Shut Down…
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    Select the Erase tab.
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