Mac Pro locking up when syncing with my iPod

Mac Pro, 2 gig memory, 3ghz quad, 5th generation iPod:
When trying to sync my ipod, everything seems to work fine, for about 200 files then it either:totally locks up my computer requiring me to press the reset button, or iTunes locks up, can not force quit, at this point can not eject ipod or any CD's in drives - can not log out (hangs) - have to press reset button.
This is what I have tried:
Total reset of ipod (using updater)
sync ipod on my laptop (works fine there) (also, works on my old G5)
Restarted computer
Unplugged all other USB devices.
All updates have been applied.
Did not touch computer while trying to sync. (even held breath)
Seems like an I/O error, but have no clue.
One time when trying, everything seemed ok, but then I noticed the song it was supposedly downloading wasn't changing. ie it was downloading the same song over and over in an endless loop. But mostly it just locks up, as described.
I also notice it takes alot longer to recognize the iPod when first plugging in.
Mac Pro   Mac OS X (10.4.7)  

Yes, same thing happened.
At one point, iTunes was the only responding application. Any other action I tried to take literally took about 20 seconds. It was as if my Mac was in sloooooooo mooooooooootion...but when iTunes was the foreground app, it flew. This all occurred while iTunes was updating my iPod, mind you. You'd think it'd be the other way around, with iTunes being the slow app (it was busy updating my 60GB vPod) and everything else a little slower.
Opened Activity Monitor and iTunes wasn't hogging an abnormal amount of CPU cycles. Also, all that was listed in the 'Kind' column was 'Intel,' so it wasn't a Rosetta issue.
Very strange...eventually had to reboot.
However, this was before I did a clean install of OS X and hand copied the files from my old G4 to my new MP. The first time around when I used Migration Assistant to copy the files is when I had this and other problems.
And don't get me started on Safari...that application has it in for me. It crashed constantly on my G4 and is now crashing on schedule on my new MP. Arrrgggh!

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    Apr 18 13:03:38 localhost kernel[0]: AppleACPICPU: ProcessorApicId=1 LocalApicId=1 Enabled
    Apr 18 13:03:38 localhost kernel[0]: AppleACPICPU: ProcessorApicId=2 LocalApicId=7 Enabled
    Apr 18 13:03:38 localhost kernel[0]: AppleACPICPU: ProcessorApicId=3 LocalApicId=6 Enabled
    Apr 18 13:03:38 localhost kernel[0]: AppleACPICPU: ProcessorApicId=4 LocalApicId=0 Disabled
    Apr 18 13:03:38 localhost kernel[0]: AppleACPICPU: ProcessorApicId=5 LocalApicId=0 Disabled
    Apr 18 13:03:38 localhost kernel[0]: AppleACPICPU: ProcessorApicId=6 LocalApicId=0 Disabled
    Apr 18 13:03:38 localhost kernel[0]: AppleACPICPU: ProcessorApicId=7 LocalApicId=0 Disabled
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    Apr 18 13:03:38 localhost kernel[0]: Enabling XMM register save/restore and SSE/SSE2 opcodes
    Apr 18 13:03:38 localhost kernel[0]: Started CPU 02
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    panic(cpu 0 caller 0x001A429B): Unresolved kernel trap (CPU 0, Type 14=page fault), registers:
    CR0: 0x8001003b, CR2: 0x00004000, CR3: 0x01019000, CR4: 0x000006e0
    EAX: 0x23a3d578, EBX: 0x00000000, ECX: 0x00001000, EDX: 0x00004000
    CR2: 0x00004000, EBP: 0x2544bc18, ESI: 0x23a3d578, EDI: 0x00004000
    EFL: 0x00010206, EIP: 0x0019637c, CS: 0x00000008, DS: 0x00000010
    Backtrace, Format - Frame : Return Address (4 potential args on stack)
    0x2544b9d8 : 0x128d08 (0x3cb134 0x2544b9fc 0x131de5 0x0)
    0x2544ba18 : 0x1a429b (0x3d0e4c 0x0 0xe 0x3d0670)
    0x2544bb28 : 0x19ada4 (0x2544bb40 0x23a39578 0x2544bb98 0x84ae50)
    0x2544bc18 : 0x84b148 (0x23a39000 0x2 0x2544bc68 0x1a1738)
    0x2544bc38 : 0x8393d4 (0x2544bddc 0x0 0x2544bc68 0x4b0000)
    0x2544bd18 : 0x6ca33a (0x23a39000 0x2544bdaa 0x2544bdaa 0x84)
    0x2544bd78 : 0x6be697 (0x3c34000 0x2544bdaa 0x2544bdaa 0x84)
    0x2544bdf8 : 0x6a72e3 (0x3c34000 0x1 0x2544be48 0x1a1738)
    0x2544be18 : 0x6aee4a (0x553f8000 0x0 0x3ff96a27 0x3d87)
    0x2544be78 : 0x546b55 (0x3c34000 0x2544beac 0x1 0x1a26ce)
    0x2544bec8 : 0x54a1d0 (0x3a21e00 0x3 0x3f60ddf8 0x3d87)
    0x2544bee8 : 0x54bc8d (0x3a21e00 0x7abf 0x5cbd220 0x5cbd160)
    0x2544bf28 : 0x39c536 (0x3a21e00 0x3a40280 0x8 0x2)
    0x2544bf78 : 0x13d7d9 (0x3a40280 0x3a87e78 0x0 0x0)
    0x2544bfc8 : 0x19ac1c (0x0 0x0 0x19e0b5 0x397fcec) Backtrace terminated-invalid frame pointer 0x0
    Kernel loadable modules in backtrace (with dependencies):
    com.apple.NVDAResman(4.5.2)@0x6c9000
    dependency: com.apple.iokit.IOPCIFamily(2.2)@0x5e0000
    dependency: com.apple.iokit.IOGraphicsFamily(1.4.5)@0x69f000
    dependency: com.apple.iokit.IONDRVSupport(1.4.5)@0x6ba000
    com.apple.iokit.IONDRVSupport(1.4.5)@0x6ba000
    dependency: com.apple.iokit.IOPCIFamily(2.2)@0x5e0000
    dependency: com.apple.iokit.IOGraphicsFamily(1.4.5)@0x69f000
    com.apple.iokit.IOGraphicsFamily(1.4.5)@0x69f000
    dependency: com.apple.iokit.IOPCIFamily(2.2)@0x5e0000
    com.apple.iokit.IOHIDFamily(1.4.10)@0x531000
    Kernel version:
    Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386
    Wed Apr 18 17:06:26 2007
    panic(cpu 1 caller 0x001A429B): Unresolved kernel trap (CPU 1, Type 14=page fault), registers:
    CR0: 0x8001003b, CR2: 0x00004000, CR3: 0x01019000, CR4: 0x000006e0
    EAX: 0x23a4d578, EBX: 0x00000000, ECX: 0x00001000, EDX: 0x00004000
    CR2: 0x00004000, EBP: 0x25443c18, ESI: 0x23a4d578, EDI: 0x00004000
    EFL: 0x00010206, EIP: 0x0019637c, CS: 0x00000008, DS: 0x04080010
    Backtrace, Format - Frame : Return Address (4 potential args on stack)
    0x254439d8 : 0x128d08 (0x3cb134 0x254439fc 0x131de5 0x0)
    0x25443a18 : 0x1a429b (0x3d0e4c 0x1 0xe 0x3d0670)
    0x25443b28 : 0x19ada4 (0x25443b40 0x23a49578 0x1 0x4065004)
    0x25443c18 : 0x84b148 (0x23a49000 0x2 0x25443c48 0x713bbf)
    0x25443c38 : 0x8393d4 (0x25443ddc 0x0 0x25443c68 0x7116c2)
    0x25443d18 : 0x6ca33a (0x23a49000 0x25443daa 0x25443daa 0x84)
    0x25443d78 : 0x6be697 (0x3c61c00 0x25443daa 0x25443daa 0x84)
    0x25443df8 : 0x6a72e3 (0x3c61c00 0x2 0x25443e28 0x1e)
    0x25443e18 : 0x6aee4a (0x523e0000 0x0 0xfd8e30e2 0xc93)
    0x25443e78 : 0x546b55 (0x3c61c00 0x25443eac 0x2 0x1a26ce)
    0x25443ec8 : 0x54a1d0 (0x3a21e00 0x3 0xfcf5a332 0xc93)
    0x25443ee8 : 0x54bc8d (0x3a21e00 0x1917 0x4336be0 0x4336b20)
    0x25443f28 : 0x39c536 (0x3a21e00 0x3a40280 0x8 0x2)
    0x25443f78 : 0x13d7d9 (0x3a40280 0x3a39ff8 0x0 0x3303)
    0x25443fc8 : 0x19ac1c (0x0 0x0 0x19e0b5 0x5cb2144) Backtrace terminated-invalid frame pointer 0x0
    Kernel loadable modules in backtrace (with dependencies):
    com.apple.NVDAResman(4.5.2)@0x6c9000
    dependency: com.apple.iokit.IOPCIFamily(2.2)@0x5e0000
    dependency: com.apple.iokit.IOGraphicsFamily(1.4.5)@0x69f000
    dependency: com.apple.iokit.IONDRVSupport(1.4.5)@0x6ba000
    com.apple.iokit.IONDRVSupport(1.4.5)@0x6ba000
    dependency: com.apple.iokit.IOPCIFamily(2.2)@0x5e0000
    dependency: com.apple.iokit.IOGraphicsFamily(1.4.5)@0x69f000
    com.apple.iokit.IOGraphicsFamily(1.4.5)@0x69f000
    dependency: com.apple.iokit.IOPCIFamily(2.2)@0x5e0000
    com.apple.iokit.IOHIDFamily(1.4.10)@0x531000
    Kernel version:
    Darwin Kernel Version 8.9.1: Thu Feb 22 20:55:00 PST 2007; root:xnu-792.18.15~1/RELEASE_I386

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    Make that another person WITH AN IPOD PROBLEM<<<</div>
    This forum is like a hospital - you're going to see a lot of sick people!
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    [email protected]

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