I'm looking at a cheap upgrade myself, and since I don't game I'd love to use my 1GB DDR400 memory and ATI 9600 AGP card. With the current processors and an ASRock board that'll use them, I'm stuck at 300MHz FSB. So, a $300 E6400 & board combo gets me 2.4GHz. An E4300 with the same rig would...