Its not a waste of money for SLI. Especially if you play on a 24" monitor. Good luck pushing 1920x1200 all settings high with some AA on a single video card in a game like Age of Conan. That being said, dont cheap out on the motherboard. 650i mobos are junk, they are only 8x/8x in SLI mode and most dont overclock for squat. IF you are going SLI, get the evga 750i FTW board as it is a great overclocker, and is 16x/16x, and the cheapest GOOD sli board you are going to be able to find.
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All true, but the important part is, and Veedub, you're one of those that told me this, if you play 23" or les monitor, SLI is not worth it. 24" or above I was told to go SLI if I wanted to play high settings. Since I have a 22" and will not spend money for a 24"+, one card it was =)