The buttons do feel wrong, but I think I know why.
They don't change colour/style/anything when you're ON that page or have been to that page, doing something as simple as changing the colour of a certain button if you're on that page can make a site far more usable.
Also, may I suggest a slightly more gentle shade of green, that shade hurt my head a little and some people can't look at strong greens like that.
Oh, and another thing. Would it be a good idea to move your servers IP address to the homepage? people are lazy and important info (such as your server IP) should be front and center.
That's just my (not so) little bit though.
An integer walks into a bar, the barman says "Sorry, we don't serve your type here"