As you know I am super picky about image quality. I think my answer would depend on your budget and your tastes. I was very happy with my DL450 and ISCO lens. The ISCO really transformed the projector. Personally, I don't know of any XGA single chip DLP that really knocks the ball out of the park. The Seleco HT250 has had some problems, as Tom Strade has pointed out. The Dwin Transvision has gotten very good reviews, but it (and the Seleco) are very expensive. I have been very disappointed with the developments in single chip DLP. Moore's law does not apply to DLP. As for the NEC, Plus, Davis and InFocus XGA models, I don't know what to expect from most of the newest units. I do know that all of them had serious problems. Knowing what I know now, I would be very wary of any XGA single chip DLP. But some people have enjoyed their XGA DLP's for a year or two and not agreed with me that the problems I saw were deal killers. I don't really have anything in common with them, other than I own a front projector. I'm not after the same experience as them. So, what I can say is this: I don't know of any XGA single chip DLP with a sub $10K MSRP that I would recommend. However, I would keep my options open with D-ILA. D-ILA doesn't have the crispness and depth of DLP, but it does have invisble pixels, accurate colors and HDTV compatibility. D-ILA has dead pixels and possibly green fog, poor absolute blacks (at least in uncalibrated units), loud fan noise and probably a few other problems I'm forgetting, but the positives can outweigh the negatives. I wish I could have given you a thumbs up recommendation for a specific XGA unit.
Ahh, I see you edited your post. Well, from what I understand, the DLX10 had serious tearing problems. Maybe the new software can fix it? It's too bad Mark Rejhon's triple buffering post has been deleted. It went into a lot of detail on why triple buffering was so important in preventing tearing. I think Robert Clark got better results with his DLX650 and newer software, didn't he? He was also driven up the wall with the tearing problem of the Davis XGA units. I wonder if Davis makes any XGA models that don't have tearing? I know of at least one forum member who can answer that definitively. I guess that's the big question: Does Davis make ANY XGA units that don't have tearing?