i have 2 512 sticks of ram in my AMD machine. my friend only has a 256, and he says hell send me 50 bux and his 256 if i send ih one of my 512s. would that be a big difference step from 1 gig? i like to play alot of high end games while listenign to music. (btw i have corsair and hes gonna send me a kingston...)