Hi all, I just picked up a Pioneer PDP-503PU 50" plasma and don't have a clue as to which DirecTV IRD to buy. The set is capable of displaying 720p. I noticed a Zeinth SAT-420 IRD with DVI for ~$520 shipped from www.plazmaking.com. This is a lot less than the Sony. Would I be better served posting in another forum? Any advise would be greatly appreciated as I'd like to get this thing going!