Also, you have serious disk issues:
8/8/2007 12:37:40 PM 1 0 9 atapi N/A DELL2400 The device, \Device\Ide\IdePort0, did not respond within the timeout period.
8/8/2007 1:12:47 PM 1 0 9 atapi N/A DELL2400 The device, \Device\Ide\IdePort0, did not respond within the timeout period.
8/8/2007 1:17:12 PM 1 0 9 atapi N/A DELL2400 The device, \Device\Ide\IdePort0, did not respond within the timeout period.
...and that's just the tip of the iceberg, from a 45 minute period in one day.
Here's more:
7/14/2007 3:31:59 PM 1 0 7 Cdrom N/A DELL2400 The device, \Device\CdRom0, has a bad block.
7/14/2007 3:32:08 PM 1 0 9 atapi N/A DELL2400 The device, \Device\Ide\IdePort1, did not respond within the timeout period.
7/14/2007 3:32:19 PM 1 0 9 atapi N/A DELL2400 The device, \Device\Ide\IdePort1, did not respond within the timeout period.
7/14/2007 3:32:20 PM 1 0 7 Cdrom N/A DELL2400 The device, \Device\CdRom0, has a bad block.
7/14/2007 3:32:30 PM 1 0 9 atapi N/A DELL2400 The device, \Device\Ide\IdePort1, did not respond within the timeout period.
7/14/2007 4:07:18 PM 1 0 9 atapi N/A DELL2400 The device, \Device\Ide\IdePort1, did not respond within the timeout period.
7/14/2007 4:07:49 PM 1 0 9 atapi N/A DELL2400 The device, \Device\Ide\IdePort1, did not respond within the timeout period.
7/14/2007 6:09:11 PM 1 0 9 atapi N/A DELL2400 The device, \Device\Ide\IdePort1, did not respond within the timeout period.
Smart thing to do is probably to remove all disk-based filter drivers, and see if the issue goes away; if not, start thinking about hardware:
Filter Found
Key = HKLM\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
Description = DVD/CD-ROM drives
LowerFilters = PxHelp20 drvmcdb sscdbhk5 MxlW2k
(Google everything to the right of "lowerfilters = pxhelp20" and think about uninstalling all of that software.