Sorry to reply so late. I have the Mitsubishi 57732. I've had th 52631 and the 57731 (don't ask) as well. These things need to be calibrated out of the box. Even an hour with Ultimate DVD can make a huge difference.
HT Guys posted their settings. You will probably need to adjust them. I find them too green and too blue. However, I sit directly in front of a painted olive green wall, so the reflections obviously play a major role.
SD still won't look great if you sit close to the TV. Give it time and your eyes will adjust a bit. However, it will still look, well, "awful" to anyone that's not used to your TV. Doesn't the HD picture look sweet?
Shane, my experiences with both previous units were fine.
I bought a 52631 at Fry's. (The only annoying experience with that was having to deal w/ folks in Texas who thought I was nuts picking up a RPTV without a truck. The 52631 fit inside the hatch of my Prius --box and all!) Two weeks later they put a 57731 on sale for $1 cheaper. Fry's has a 30-day guarantee. I returned the 52631, got a 57731 and bought some gum with the $1store credit. Three weeks later (the 30-day resets with each purchase), they put a 57732 on sale for the same price as the 57731. I returned the 57731 and bought a 57732 (no extra $ needed). My original sales guy said he would do the same thing if he were in my position. A couple of weeks after that they put the 73732 on sale for $1k more than I paid for the 57732. I briefly thought about it, then shook my head and said, "Enough"! I decided to spend the $1k on media furniture, a HD-DVD player (possibly a Blu-Ray to follow) and a little bit towards an A/V receiver.
