Pretty much the only game that will really benefit with such a setup though is Crysis, every other game runs very well with a single Ultra (or SLI-2 card for 2560x1600). Take for example COD 4, brand new game, looks really great, plays well at 19x12 4X AA, max in-game settings on a single GTX.
QFT...I dont know why Crysis is being thrown around for a reason of "treSLI"(dibs on the copyright for the name..)..The developers have said 18 months we will have HW to run this game ma..Think Farcry..COD4 ran beautifully on my rig sig(and that was on my C2D)..I guess if you have the $$ then go for it..Me,wake me up when the 9xxx gets here..