Graphically, I think this site is already above average. I really can't see you significantly improving that.
The only thing that hits me as a negative as the page appears, is that the divs containing all of the sites info are touching the left edge of the browser. I would invert them a few pixels.
I've actually come across this site before and I remember being quite impressed with the design of it. I particularly like your logo, very nice 
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"Those who believe in telekinetics, raise my hand."
-Kurt Vonnegut
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