Clean and slick… very nice. Simple. Personally have never been a fan of blue + brown combinations like your signup area, but that may just be my own aesthetic preference.
Might be cool to give the background below the first footer (Support / Forums etc) a slightly different color or shade to differentiate that type of content from what’s above.
Come to think of it, if usability is your thing, unless this is a landing page for a promotion or something (and not a home page), people might want to be able to see and access those links (Support / Forums etc) at the top without scrolling, especially if they’re return visitors who don’t need an introduction to your product.