Random crashes everyday. Please help... I cant take it anymore!

Question

Help Please!
I have been getting random crashes for months now and it's driving me crazy. This happens randomly every day a few times a day. I get the hard crash screen with the instructions to hit the button to reboot. Its the grey square screen over the faded background with a square that has different languages. I have gotten this crash even when the computer was sleeping or not doing anything processor intensive. I am not sure what to do????
Here is the Report: Any help is much appreciated as I can't deal with having to restart my computer and loose work a few times every day:
Wed May 20 11:13:09 2009
Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x0000000000000000 PC=0x00000000000AC24C
Latest crash info for cpu 0:
Exception state (sv=0x656f0000)
PC=0x000AC24C; MSR=0x00001030; DAR=0x00000000; DSISR=0x42000000; LR=0x000421A0; R1=0x5B0CFD40; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x00000000 0x00042194 0x0003FA44 0x000B0E54
Proceeding back via exception chain:
Exception state (sv=0x656f0000)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x655d0280)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
BSD process name corresponding to current thread: Unknown
Mac OS version:
9G55
Kernel version:
Darwin Kernel Version 9.6.0: Mon Nov 24 17:39:01 PST 2008; root:xnu-1228.9.59~1/RELEASE_PPC
System model name: PowerMac11,2
panic(cpu 1 caller 0xFFFF0003): simple lock (0x00455224) deadlock detection, pc=0x0003FE40
Latest stack backtrace for cpu 1:
Backtrace:
0x0009BCF0 0x0009C694 0x00029EA0 0x000AC1A8 0x0003FE40 0x0003447C 0x00037654 0x0003784C
0x00040D70 0x000BA8D4 0x000B5424 0x000B3938
Proceeding back via exception chain:
Exception state (sv=0x655ca000)
PC=0x000B6F5C; MSR=0x00009000; DAR=0x1C6A0000; DSISR=0x42000000; LR=0x000358B8; R1=0x5B0E7CE0; XCP=0x00000024 (0x900 - Decrementer)
Backtrace:
0x00035894 0x00036104 0x00036C3C 0x0003FA60 0x000B0E54
Exception state (sv=0x65687a00)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
BSD process name corresponding to current thread: kernel_task
Here is the system configuration:
Model: PowerMac11,2, BootROM 5.2.7f1, 2 processors, PowerPC G5 (1.1), 2.3 GHz, 6.5 GB
Graphics: kHW_NVidiaGeForce6600Item, GeForce 6600, spdisplayspciedevice, 256 MB
Memory Module: DIMM0/J6700, 256 MB, DDR2 SDRAM, PC2-4200U-444
Memory Module: DIMM1/J6800, 256 MB, DDR2 SDRAM, PC2-4200U-444
Memory Module: DIMM2/J6900, 1 GB, DDR2 SDRAM, PC2-4200U-444
Memory Module: DIMM3/J7000, 1 GB, DDR2 SDRAM, PC2-4200U-444
Memory Module: DIMM4/J7100, 2 GB, DDR2 SDRAM, PC2-3200U-288
Memory Module: DIMM5/J7200, 2 GB, DDR2 SDRAM, PC2-3200U-288
Network Service: Built-in Ethernet 1, Ethernet, en0
PCI Card: GeForce 6600, display, SLOT-1
PCI Card: Apple 5714, network, GIGE
PCI Card: Apple 5714, network, GIGE
Serial ATA Device: WDC WD2500JS-41MVB1, 232.89 GB
Parallel ATA Device: PIONEER DVD-RW DVR-110D
USB Device: hub_device, (null) mA
USB Device: Hub in Apple Extended USB Keyboard, (null) mA
USB Device: Apple Optical USB Mouse, (null) mA
USB Device: Apple Extended USB Keyboard, (null) mA
USB Device: Apple Cinema HD Display, (null) mA
USB Device: iPhone, (null) mA
USB Device: hub_device, (null) mA
USB Device: PTZ-630, (null) mA
FireWire Device: iSight, Apple Computer, Inc., 200mbit_speed
FireWire Device: My Book, WD, 400mbit_speed
FireWire Device: unknown_device, unknown_value, unknown_speed
FireWire Device: unknown_device, unknown_value, unknown_speed

Answer 1

You may be experiencing a Kernel Panic as seen and described in Apple doc.#106227. If not, disregard.
Here's the most used site for Resolving Kernel Panics. Please do all the steps in order, even if you don't think you need to do a certain step.
Here's a great MacFixIt article.
 Good Luck! DALE