Got a great deal on an XBR-4 from a local Sony Store here in So Cal (less than list price for new W4100 and was all set to pull the trigger...and did not! Looked at both TVs side-by-side playing different sources - Blu-Ray on XBR4 and HD (1080I?) TV feed on 4100. I have some issues that may be unique to my room, mounting on an old brick fireplace so really trying to keep the weight down (originally was thinking about Sharp 5264U because of the slim design but the picture just doesn't compare to Sony or Samsung). Anyway, the XBR is a better picture if you come from a film b.g. like me and like more"cinema-type" blacks, hard to exactly pin that down, but the 4100 looked more LCD-like than the XBR, IMHO. But the 4100 really looks like a great set with most of the bells and whistles as the XBR, except perhaps a bit less juice on the video processing side, the 10 bit color space thing (really not an issue yet given today's source material) However, one big "little thing" is 4 HDMI inputs on the 4100 v. 3 on the xbr. I say get as many HDMI inputs as possible to future proof things - with HD cable box, Blu Ray Player and Apple TV, I'd be already maxed out on the xbr and no room for any gaming inputs or whatever else comes down the line. My main question for this thread is the Samsung A750 vs the W4100 as those two seem like head-to-head competitors, I assume. I personally don't like the XBR styling with all the extraneous glass and bezel, but it is, again, IMHO, the best commercially available LCD image out right now. I really want a 65" LCD given how big my room is, but can't afford it. Just to throw one more TV in the mix - has anyone seen the newer 120Hz Sharp 52"??? SE94U