I looked at the Sammy DLP (6168) and came within a "frog hair" of buying one. Just couldn't convince myself after reading pages of comments on the AVS board.

Ended up buying a Sony 60" SXRD. I am convinced that I made the proper choice for me. My room size is similar to your, but probably arranged differently.

The Rat. M80s, VP-150, QS8s, SVS PC 20-39+, OPPO, Onkyo 703s, Harmony 880 Sony 60" SXRD HDTV