Stone I have probably hunted out of about 98% of the commerical "towerstands" out there and my personal favorite for reasonable cost, ease of construction/setup and outstanding quality and durability leave only one choice.

www.blynd.com

The realitive lighweight makes them easily movable (for a tower stand) periodically. An added benefit is that with the windows closed and in direct sunlight, they warm up slightly (about 20degrees) in the sunlight due too the black plastic outter shell. You of course can paint them (or even Camo Clad them) to match any surroundings. They will literally last FOREVER!!!

Good luck,
RA