Be a fool not to get 8gig if its that priceonly reasons i got 8gig of ram was for zbrush.
Oh and it only cost me £120 inc brand new for 2x4gb sticksBe a fool not to get 8gig if its that price

they cottoned on once i purchased and they sent 2x2gb and i complained due to the description. They sent me 2x4 then bumped the price up another 150quid 
Not necessarily, I upgraded to 8gb and after a little tinkering I am still running at 3.6ghz.
But yes, it does put a lot more strain on the memory controller.
It's a well documented finding/opinion that adding more RAM often makes your overclock unstable.

Even just using windows 7 and few apps running in background I can just feel that 8gig makes performance just that little bit smoother....
