the W1070 really is a short throw. It won't work for me at 20' on a 106" screen according to benq's site and projectorcentral.com
Cave build Onkyo HT-RC270, Jamo C607, C60CEN, C601 Highs, C60SUR, A102 SurBacks, SUB300 X2
Monoprice 7337 106" Screen, Sony KP-51WS500 CRT RPTV, Shaw Gateway/Arris MG5225G & MP2000 HD Cable, , Sammy BD, JVC XV-FA95 DVD, Harmony 880
WTB: Panny AR100
Lvrm Yamaha HTR-5750, Energy RC-Mini Fr&R, RC-Mini Center, e-XLS8 Sub
Samsung PN63C550, Arris MP2000, PS3 Slim 250GB, Boxee Box, Harmony One, Harmony PS3 adapter
Bdrm JVC HTIB DVD, Energy Take2 F&R, Take1, Sony HTIB Sub, JVC 24", Arris MP2000