The banner doesn't seem to go well with the rest of the page. It looks out of place, and would probably be better if it was smaller, lesser drop shadow and maybe just in the top left corner within the main body, rather than the top center.
The font isn't of my liking. The font feels on the professional side of things, whereas the colors and banner make it feel casual as such.
I agree with David. The banner doesn't fit with the whole design. Maybe because it's just too bright. The background, for some reason, makes me happy. The template's sidebar is a little too basic, don't you think. I think the links are fine just the way they are.