If gaming's important to you, and money's not an object, why not get two 7800GTXs in SLI mode?
And I would recommend
this board.
I haven't used that one specifically, but in my experience Asus always has the best boards, and that one has some excellent features. (4 SATA II, 4 SATA 150, 2 Gigabit ethernet...) It will most likely be the board I buy for my next build, unless they make a better version of it.