Yeah it's looking great. Nice work with the wheels as well. Whenever I see a tracked robot it always makes me want to make one, although I probably couldn't do a decent attempt.

But I'd love to stick some on my grabby-robot when I rebuild it, something meaty like on this Aussie bot:
http://www.robowars.org/forum/album_pic.php?pic_id=1516

Anyway, will love to see it in action when it's done