Shoutbox

but the rest of the design doesnt have any roundedness, that would mess it up ;<

round all edges then

Make the navigation bar go down as you scroll down .

So the nav bar follows you.

Looks good .

I know its centered, but it doesn't look like it is. Maybe add a similar small box to the right? (and put copyright stuff there?) so it looks centered?

Just a suggestion.. if not, I liked it better aligned to the right :/ .. it just doesn't look centered like that (although it is..)

Oh, and I think you should change the title background and the menu hover links as black diagonal lines not really match a landscape view.