The guy who reviews all the bbq's on about.com really likes this one:
The Broil King Monarch 40
http://bbq.about.com/od/gasgrillrevi...apr042506c.htm
It's Fugly, but it has the same internals as the expensive broil king grills.
BBQ's galore has it for $320... not sure if it is cheaper anywhere else.
http://www.barbecuesgalore.ca/cooking.bpsx?CookingID=2