Elite electrical projection screens are pretty cheap and the quality in not bad. Its about half the price of DaLite at about 80% the quality.
101" diagonal 16:9 Electric for $220
http://quadloft.com/concerti/mini-DSC_1168.htm
http://www.tigerdirect.com/applications/category/category_slc.asp?CatId=625&Nav=|c:280|&Sort=3&Recs=10

Saturn


http://www.quadloft.com/hometheater- new HT