MBP takes several minutes to start... then very slow... HELP!

This is a duplicate of a post I have in the MBP forums, but was suggested to me that I may want to post it here as well.....
My MBP is coming up on 3 years old this December... Since upgrading to Leopard in early summer this year the system seems rather slow... especially starting up. It takes 3+ minutes usually. I didn't do a "clean", reformatted install with the OS install (which I may do once I back up my entire drive). I'm using approx. 70 gigs on my internal HD and the system states nearly 35 gigs availible... I have run Tech Tools Deluxe and Maintenance and they verify all is fine. I ran "sudo dmesg" in Terminal, and this is the report:
ing a USB device that has been plugged in. It will keep retrying. (Port 4 of hub @ location: 0xfd300000)
USBF: 4882.693 0x51f7f00 The IOUSBFamily was not able to enumerate a device.
USBF: 4883.673 0x51f7f00 The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 4 of hub @ location: 0xfd300000)
USBF: 4991.670 0x51f7f00 The IOUSBFamily was not able to enumerate a device.
USBF: 4992.473 0x51f7f00 The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 4 of hub @ location: 0xfd300000)
USBF: 5101.671 0x51f7f00 The IOUSBFamily was not able to enumerate a device.
USBF: 5102.553 0x51f7f00 The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 4 of hub @ location: 0xfd300000)
USBF: 5212.949 0x51f7f00 The IOUSBFamily was not able to enumerate a device.
USBF: 5213.913 0x51f7f00 The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 4 of hub @ location: 0xfd300000)
USBF: 5325.508 0x51f7f00 The IOUSBFamily was not able to enumerate a device.
USBF: 5326.553 0x51f7f00 The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 4 of hub @ location: 0xfd300000)
USBF: 5439.350 0x51f7f00 The IOUSBFamily was not able to enumerate a device.
USBF: 5440.218 0x51f7f00 The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 4 of hub @ location: 0xfd300000)
USBF: 5554.213 0x51f7f00 The IOUSBFamily was not able to enumerate a device.
USBF: 5555.161 0x51f7f00 The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 4 of hub @ location: 0xfd300000)
USBF: 5670.358 0x51f7f00 The IOUSBFamily was not able to enumerate a device.
USBF: 5671.385 0x51f7f00 The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 4 of hub @ location: 0xfd300000)
USBF: 5787.782 0x51f7f00 The IOUSBFamily was not able to enumerate a device.
USBF: 5788.633 0x51f7f00 The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 4 of hub @ location: 0xfd300000)
USBF: 5906.229 0x51f7f00 The IOUSBFamily was not able to enumerate a device.
USBF: 5907.161 0x51f7f00 The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 4 of hub @ location: 0xfd300000)
USBF: 6025.958 0x51f7f00 The IOUSBFamily was not able to enumerate a device.
USBF: 6026.970 0x51f7f00 The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 4 of hub @ location: 0xfd300000)
USBF: 6146.967 0x51f7f00 The IOUSBFamily was not able to enumerate a device.
USBF: 6147.801 0x51f7f00 The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 4 of hub @ location: 0xfd300000)
USBF: 6268.999 0x51f7f00 The IOUSBFamily was not able to enumerate a device.
USBF: 6269.913 0x51f7f00 The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 4 of hub @ location: 0xfd300000)
USBF: 6392.310 0x51f7f00 The IOUSBFamily was not able to enumerate a device.
USBF: 6393.305 0x51f7f00 The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 4 of hub @ location: 0xfd300000)
USBF: 6436.101 AppleUSBHubPort0x51f7f00::FatalError - Port 4 of Hub at 0xfd300000 reported error 0xe00002c0 while doing clearing port power feature
USBF: 6436.101 0x51f7f00 The IOUSBFamily was not able to enumerate a device.
disk0s2: ioctl('',51,0) is unsupported.
AirPort: Link Down on en1
disk0s2: ioctl('',51,0) is unsupported.
disk0s2: ioctl('',51,0) is unsupported.
disk0s2: ioctl('',51,0) is unsupported.
Here are my specs:
Model Name: MacBook Pro 15"
Model Identifier: MacBookPro2,2
Processor Name: Intel Core 2 Duo
Processor Speed: 2.33 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 3 GB
Bus Speed: 667 MHz
Boot ROM Version: MBP22.00A5.B07
SMC Version (system): 1.12f5
Serial Number (system): W8***PW0H
Hardware UUID: 00000000-0000-1000-8000-0017F2C55613
Sudden Motion Sensor:
State: Enabled
I'd like to clean up my MBP and get rid of anything that is not needed or that may be slowing the machine down.... trying to get it to run faster, like when it was new.....
...what am I missing? What else should I do? Should I just do the reformat install of the OS once I back up to Time Machine?
I should add that although I usually have a few devices connected to my USB/ Firewire ports, for the above test, I made sure nothing was attached to my MBP.
Thanx,
Tony

I'll try. Have you tried basic maintenance? How much ram is installed?
Disconnect all peripherals from your computer. Boot from your install disc & run Repair Disk from the utility menu. To use the Install Mac OS X disc, insert the disc, and restart your computer while holding down the C key as it starts up.
Select your language.
Once on the desktop, select Utility in the menu bar.
Select Disk Utility.
Select the disk or volume in the list of disks and volumes, and then click First Aid.
Click Repair Disk.
Restart your computer when done.
Repair permissions after you reach the desktop-http://docs.info.apple.com/article.html?artnum=25751
Check your login items. Check to see which items you can eliminate or disable.
If you have Diskwarrior, Techtool Pro or Drive Genius run them directly from the disc.
Message was edited by: CMCSK

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