bustone: im pretty sure he already has the PIII 500. personally i would get the XP 1600+, its only $113...but that's almost double what you were going to spend. Also remember to factor in price of a new motherboard and possibly a new power supply (well most likely). Maybe going to a P3 933 for $129 would be a better deal - or the 1 GHz PIII for $153. In fact, it most definitely would be. See if you can find a high end PIII on the FS/FT forum, or just buy from pricewatch (make sure you get a slocket if yours is a type I motherboard).