I agree with nubius on many of his comments.
IMO~ You don't need to spend that kind of $MONEY$ on this kind of technology. Todays PC games can't and probably won't for a long time support this technology. Not saying that the games won't run, they will, but there is no utilization of two cards. SLI technology today basically allows you to run two cards, (one card - displays the top portion of the screen and the second card - displays the bottom portion on the screen.) Big deal. I'd rather have one 512MB video card displaying the whole screen than 2 (256MB) and SLI with two 512MB for a total video memory of 1GIG? Come on... That's like putting a "big block 440" into a GO-CART. It's just not freakin' necessary.
And everyone is raving about the AMD FX-55 or the P4 Extreme Editions for gaming. Best for gaming, Best for gaming... Please, spend $900 to $1200 for a processor and another $1200 on dual SLI videocards. NO thanks.
I've got a Intel P4 3.4GHz
2 GIG of XMS corsair
(2) 250GIG SATA Seagate barracuda w/NCQ in RAID 0
A brand new Sapphire Radeon X800XT PE with Artic-Cooling Silencer 4.
SB Audigy 2 ZS
WINDOWS 95 (LOL J/K) WINDOWS XP PRO
I play all new games at highest settings and resolutions. And never have a problem. Well, except for HL2 which I still can't seem to play for some unknown memory read error, that thousands of people have experienced and hasn't been fixed yet.
My point, I don't have one... LOL