Projector Info.
1. Depending on your budget there are some good 1080p and 720p projectors available. For about $4k, you can get a 1080p LCD projector including the new models from Panasonic and Mitsubishi. A quality 720p projector, is a fraction of the cost at $1-2k.
Audioholics has some good projector reviews, but also check out projectorcentral.com for more reviews and a detailed shoutout of the new 1080p projectors.
2. Crada makes some quality, reasonably priced fixed screens. You might consider getting the projector first and sooting it on a white wall to determine the optimal screen size.
3. A quality DVD player like the Oppo Digital DV-981 will make DVDs look their best with front projection. Some of the new projectors include pretty good scalers so read the reviews before buying extra equipment. The limitated resolution of an SD signal will be magnified on a big screen and there is only so much that upscaling can do.