YETI Robotics, Part of last years North Carolina Regional Winning Alliance is on the attendance list, and from my Youtube Scouting they look to have a REALLY solid robot.
http://www.yetirobotics.org/wp/our-robots/
Team Spork seems to have a beautifully machined robot, taking a quick look here.
http://teamspork.com/v2/index.php?pa...video&tab=2012
The Hitchhikers robot looks interesting from the view of it in their bag on their website.