Overall a very nice site...Just be nitpicky here
1. buttons...on main page....you have what looks like incomplete buttons in a menu on the main page that only interact (mouseover) the text. It would look better if the ends of the buttons were finished and your cursor interacted with any part of the buttons....or lose the buttonized appearance of the menu and do a menu background that encompasses all the ions like you did with the links across the bottom.
2. When you click on the 'Wallpaper Gallery" in the menu, it would be better if the sub-menu expanded on the main page vs. jumping to a new page. Also would be nice if you clicked on one of the other items in the menu that the sub-menu would close.
3. I'm using IE6 and scrollbar uses my scrollbar vs. one you define for your site. I always like it when a site defines their own scrollbars.
4. Main Image doesn't expand when window expands...looks lost and tiny on large monitor or in fullscreen.
Good Luck...it looks like it's going to be a nice design