The links look like they are well thought out. The information and the links to that info seem very complete. The calculator is a good idea, provide people with information and something to mess with while they are at your site.
On the other hand, I'm not a fan of the round corners on all the pix and links, looks dated. Think about a background besides black, everyone has that (although dark is good). I would go back to the drawing board with the logo.