Websites for backdrops?

Hey everyone,

Any recommendations on websites with quality yet affordable printed backdrops? I'm not looking for fabric, I'm looking primarily for strong paper-like material which is tear resistant.

So far, I know about lemondropstop.com. They have their polypaper which is practically tear resistant and very strong. It runs for about $80 for a 5x8 feet backdrop + S/H which in my location, it's $42 regardless of size. So basically $122 per backdrop. They offer 20% military discount which is great, not sure if it includes discount on S/H.

Any other websites?

I have gotten a white backdrop from http://www.backdropout​let.com/. Their prices are pretty reasonable. I am sure there are places to get better quality items, but for a decent item at a good deal they seem to be pretty good.