if your building a projector, you should really check out the lumenlab.com site. They have forums of people building projectors at 1080p with 120 inch screens. Ranging from $800 to $1000, mainly because the lcd cost around $400-$500. The site also sells the kit for all the lens needed, only needing a box and lcd. I am building my projector right now, finding this site by google because I was trying to remove the anti-glare off my lcd screen. I know another member mentioned the site already, but check this link of someones projector. (I think for the pictures, you might have to register). Sorry if post in incomplete thoughts, just stopping by and it sounds like you would fit right in at the forums. FLY CRJ's PJ #2 - Lumenlab scroll down about 1/3 of the way down.