I have not looked at the other Samsung TVs yet..but I am very fond of the TOC look and the PQ on the 750 is quite amazing, to me at least, and with a price like that $2400 vs $3200 list, it's pretty much a no brainer for me.

Don't know about 60hz signals vs 120hz TVs.. It seems every manufacturer calls it something propriatery like "Adaptive Motion Assist" or whatever.. From what I have seen with my own eyes on a 450 series, turning ON the motion assist ie: 120hz, makes HD content look like it's been filmed using a camcorder.. so it's best to leave it off.. which brings us back to blurr issues etc.. but honestly, I could not detect blurr on the new Batman movie playing on the newer 750 model.

Acoustic Zen Adagio, Veritas center, Axiom EP500, QS8s, Anthem AVM20, MC20,Adcom GFA7400