yeah, i know. but i'm the sort....i've gone overbudget (way over budget )on pretty much every single part of my new pc and it seems a little stupid to skimp on the last bit...but you're right...think i'll go for 4 gb now and bump it up to 8 gb if i feel the need for it. but in terms of actual performance the pi series would be faster right? from what little i understand of cas numbers or whatever lower is better/faster? and the pi is cs6 versus the cs7 for the ripjaws. things is i found a glowing review elsewhere for the ripjaws but nothing for the pi series yet......anyways, thanks for the help!!