Although, as said above, this belongs in the Website Reviews section, I'll add my 2 or 3 cents..
It's simplistic to a perfect degree. The thumbnails are a bit more than the regular thumbnails we always see. I can roll over them and see some information about them. This is a lot better than a lot of thumbnail galleries that I see where the thumbnails leave you completely in the dark, and you have to click on them just to see what's going on behind the scenes.
The "bare" navigation is just fine, but it does have 1 slight downfall.. It's just a tad too small. I like the font the way it is, but older people may not -- they may want it 1 or 2 sizes larger.
That being said, I love the background for some reason. It let's the thumbnails glow a bit.
-Lou