Thanks. So I guess a mid range card, even when configured in SLI don't stand a chance to single high end cards.
Probably not lol. The 8800 is that powerful! I too would go with 1 single 8800GTS as it uses less power then 2 7800's in SLI or the lame 8600 cards, less noise, less heat in your case, and close to the same FPS.
Though a person would have to be very desperate to buy a 8800GTS 320mb over the far superior 8800GT which costs about the same!! Though they are hard to find now, they will be more plentiful as time goes on.
7800, 8600, 8800GTS 320mb-----If they really are your only options right now, then say fudge it and wait until you have better options, unless you can find em super cheap.