Originally Posted by
scaryjim
That system should not be slow for those tasks. My money would be on there being lots of background tasks - possibly stuff you've downloaded/installed without realising they run in the background - that are chewing all your resources. Also, I imagine you're on a standard hard drive? If so do you regularly use disk clean-up and defragmenter? A fragmented hard-drive - partiuclarly if the pagefile has become defragmented - will kill system performance.
if your main concern is to improve performance, I'd start by cleaning up your old system as much as possible before spending money on new kit. If you still want to upgrade after a clean up, consider second hand Phenom II processors: there's a whole range of X4 and X6 processors out there that you could consider...