I'm in the middle of setting up my home theater in my new home. Back in 2003/2004 I purchased a Benq PE8700+ and built a DIY screen. The material for the screen (as I recall) was a grayhawk with a 1.35 gain. The status on the projector are:
Brightness (Lumens) : 1000 ANSI
Contrast (Full On/Off) : 2500:1
Audible Noise: 30.0 dB
0.7" DLP (1)
Color Wheel Segs: 6
Color Wheel Speed: 5x
Native: 1280x720 Pixels
Maximum: 1280x1024 Pixels
Aspect Ratio: 16:9 (HD)
I've always been a little disappointed with both the contrast and brightness, but was still pretty psyched to have a 92" screen (the largest my room at the time would allow).
My new room could probably handle up to 95"-100" screen depending on the viewing distance assumptions.
I'd consider doing some upgrading in the coming months. I could probably convince the family (really my wife) to let me upgrade screen (let's say $500 to $900 max) sometime in the next 6 months. It would probably be at least a year before I could justify putting a couple to a few thousand dollars into a new projector.
I know that projectors have probably come a long way in the last few years (both in terms of capability and cost), but I have no idea on screens. I know the curved is now an option but not sure if I need it.
I was wondering what the running opinions might be on upgrading value...should I try to do a screen now and run with my current projector longer or hold off as long as I can on the screen and invest in the projector end?