Well I reinstalled Winamp, Azureus and Firefox and I had them running all at
once now and the computer crashed again. It took longer to crash but it
crashed. I was looking at vista's resource monitor and it was telling me
almost 150 hard fails/min on the Azureus.exe process. I did a test with
Microsoft's Memory Diagnostic and I had 2 runs with it and 0 errors...

It just happened recently though, I had the computer running for a month and
a half without problems and its starting to give me problems now.