-Header image is nice. Don't like the placement of the nav buttons though. Don't look in place there.
-I think the side column is too wide. Makes both tables look squashed in.
-The gradients and all seem very nice.
-The postbit looks nice, but I think you should add those blue images on the top and bottom of each post to the side too. Would look better.
Nice work, seems you've put alot of work into it.