For a year I've been running my CPU at 3.2 ghz and my memory at 400fsb. A month ago I had a lot of BSOD's in XP and decided to downclock my CPU to its rightful speed of 2.8 ghz and all is well. My main applications are Corel Draw, Photoshop, DVD Shrink, TMPGEnc, Ulead DVD Moviefactory etc and I can't see any major difference in speed. OK, perhaps a film that took 51 mins to convert now takes 53 mins - not significant in my book. However, two weeks ago I installed a part which has increased my loading speeds a great deal - a Western Digital Raptor.