I have just got this TV and it's way better than my old 37 Regza LCD, especially with SD. One thing I have found is that the spread of sharpeness levels for each profile is different! I used my scaling DVD player and the free THX test found on some DVD's. I calibrated the brighness and contrast for each profile and then looked at the THX frequency scan . I found that the ECO profile has the softest spread, followed by Cinema, Normal and DYN, which is excessivly sharpe! I also found that the gamma curve is different as well. I have ended up using Cinema for the Freeview tuner with the sharpness in the middle, and Normal, again with the sharpeness in the middle, for my SKY HD and other scaling sources such as my DVD Player. The other two profiles I find unusable. (Eco forces me to turn on the main house light to get any kind of white out of the thing). This means I don't have to change the sharpness settings manually as recommended in the review, Normal is automatically sharper than Cinema.
P.S. HDMI users should stop looking for HDMI revision numbers. HDMI is more a buffet of option's than a rigid standard. So you could get a device which supports HD audio, which requires HDMI 1.3, but not Deep Colour, which also needs 1.3. Look for the actual HDMI function you want, as that is what HDMI.ORG wants if companies are to use the HDMI logo.