for what it's worth my system struggled at times in WOW when i had my 9800gtx+ and now I am using an ATI HD5770 it has no problems at all, apart from the fact it's a newer card this could be because the ati drivers maybe work better with WOW ?^^^ I see, I see. So it might just be a WoW issue?
No, I'm not using the latest BIOS. I'm actually scared of bricking my computer, because I'm pretty hardware illiterate. It looks like one of the things they changed between my version and the new one is higher CPU compatibility for some CPU's. So... I'll go ahead and do that.