Jonathan,
Michael's comments are very valid. The newer Sony XBR sets have Cinemotion which is their stab at 3:2 pulldown in the set. However, as Michael pointed out, if the detection and processing is done in the DVD player, everything stays in the digital domain.
IMHO, a progressive scan...
Most stores are going to have 5.1 or better systems. Some stores still offer the brands of 2 channel (stereo) receivers. Some models do offer basic video switching. Tweeter is one company which have Denon, Sony and Yamaha stereo receivers available. If you are looking for higher end gear they...