I continue to read that a gray screen will vastly improve black levels and color accuracy with a DLP projector. Namely, many people are using the Stewart Grayhawks. I wandered to their site, but I couldn't find pricing. Currently I have a pull down Dalite Matte which screen, and it tends to curl. I'd be interested in a nice fixed mount style screen, with a wide black border to hide the halo effect of my DLP. How much is something like this? I've heard they can get pretty expensive, but I really have no idea where to look...