Which i7 motherboard is the "best"

I'm getting ready to build a new computer(budget around 1500-1800), and am currently struggling with which motherboard I should go with. Here's what I know(pretty much) I'm going with:

920 i7:currently $280(approximate, but can be gotten with certain deals/combo's)

OS/HD: Was told to with Premium Vista w/ WD 1 TB($180), but with this combo, the Ultimate is only $45 more at $225.
http://www.newegg.com/Product/Comb [...] mbo.182632

RAM: going with 6 GB(3 x 2), right now mulling Mushkin($100, 8-8-8-24 timing), Corsair($100, 9-9-9-24), or OCZ Platinum($95, 7-7-7-24, by far the cheapest with that timing).
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GPU::Gonna start with 1 275gtx 1792 MB I think(still checking it out to see the problems with it), and expand to 2 later. Around $300.
http://www.tigerdirect.com/applica [...] CatId=3669

PSU/Case: Was thinking 850W should be good and there are lots of deals and combos. Looking at this now that alot of prices have changed today it looks like. It's a 900w w Case for $260
http://www.newegg.com/Product/Comb [...] mbo.192519
There is one that's 1300W(normally $500, down to $350) I was checking, but it's still a bit pricey. Does give $105 off of CPU combo($534), or $110 off w WD 300GB Velociraptor combo($440) though.
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Not sure on the 1300W, might be total overkill, but i wouldn't ever habe to worry about it again. Probably go with the 900W combo.

Motherboard: This is where I'm torn. I don't mind spending a little extra on the board if it will prolong it's life. The DFI is $270, Asus P6T Deluxe $280, Asus Revolution is $350, and some others I liked too. Which one is the "best" considering layout, expandability, etc.
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Which one would you pick if you building your own, and you weren't concerned about the extra $60-100.

I put it at $1175 roughly before the board(on the low end), $1295(w 1300W/CPU deal, 1 TB WD/Vista, RAM, 275gtx 1792MB, Case($130)) . Any input would be appreciated.

The evga and asus board are both great choices for the i7 platform they both overclock quite well, but I'd go with the asus one out of personal preference to all the asus goodies (as well as gigabyte goodies shoved on to their motherboards), also nothing but good comes from the ASUS P6T Deluxe V2, it's also a bit newer design while the evga one used to be a more expensive board that has lost value over time if that means anything to you

Either way I'm sure short of a bad 1st board you'll be happy with your choice.

I too like the Asus, I just finished building one and went with the P6T Version 2 and am very happy with it.