I was hoping I was OK with 2 Gigs.
Under XP I hardly used 1 Gig....even with tons of programs running and running a game like Quake 2 on top.
I got 2 Rimms of OCZ Flex DDR2 RAM rated 1150 (PC9500).
They were expensive but I believe the potential of this RAM is tremendous, I read on the NET that it OC's to 1300Mhz on the 680i.
I just thought with Vista supporting RAm over 2 Gigs I might need to add later and I would hate to spent another $500 on RAM.