Well, don't get the 680i LT motherboard if you value your sanity. The chipset fan is annoying as fvck, plus the motherboard overall isn't that impressive. I'd upgrade to the 780i platform, personally, if you want an SLI platform.
If you don't care about SLI, I'd get a P35 unit. Gigabyte and Asus are always good choices, as usual. The IP35 Pro and DFI units mentioned earlier are quite nice and MSI also has a few boards worth considering as well.