I'm going to be buying this same projector in the next few weeks. I currently have a CRT front pj but I'm tired of it's constant need for convergence.
You probably want a gray screen to maximize contrast. The Stewart Firehawk and GrayHawk screens are very expensive. I believe it would be $1500+ for a 96x54 screen which is also the size I plan to use. My current plan is to build my own screen using fabric stretched across a home built frame and use
www.goosystems.com for the surface. Everything I've read about the screen goo is positive. I expect it to be comparable to the Stewart screens for a total cost of under $200.
-Dylan