i love my 2 gt's in sli, they kill my overclocked gtx badly.
I like the evga alot, this is my second one and I havnt had any issues with either.
I was going to go with the dfi this time but the one I got had issues and I had to send it back.
With a 9 multi or higher you can top out any chip on this mobo, possibly even 8 multi chips. I have never been concerned with huge FSB anyway and I wouldnt let the fact that the p35 and x38 chipset clock better make your choice on getting 2 gt's or not. I run 3.6 orthos stable on this mobo no problem and I got more left it in but just have been lazy, I dont know how good it clocks with quads but I know 400 is doable and with a 9 multi who cares about the fsb ?
If your gonna get reamed on gt's though price wise, consider a x38 and 2 of the new hd3870... I wouldnt pay $300 for a gt when it supposed to be cheaper, it is worth every penny of the 300 but its supposed to be 250...