Not to be rude, but in all honesty why bother?
DLP projectors are cheaper, smaller, lighter, portable, more energy efficient and able to do better graphics for both computer needs or home theatre needs. Plus they can do much bigger pictures for a lot less money.
Consider it. I have a BenQ model, a much older one, pre HDMI and I am very very satisfied with the quality and how long it has lasted. Screen and projector was $999 straight from a TV deal.(I'm equally surprised how my unit is holding its value)
Now they're higher quality ones(WXGA (is above HDTV) and up) available with better brightness (lumens) and with more inputs ( HDMI)... my advice is to check this out and get as many inputs as you possibly can. Make sure to make sure all your current units will plug into it as well and be prepared for a far more theatrical experience. I think it was tigerdirect dot com that I saw some good ones on.
http://www.tigerdirect.com/applications/Category/guidedSearch.asp?CatId=23&name=Projectors&cm_sp=LN-_-cat_23-_-GS
Actually that is a pretty incredible selection. I even saw a 3-D one in there for $700 which is a lot less than I would have expected. I see many do have not many inputs so you may need to buy a switcher box but considering the size increase I would think it would be worth it. Just my two cents.