I am ready to spend between 1,500 and 3,000 for 42" plasma. Both SD and HD models are available in this price range. Panasonic TH-42PE30 seems to be polular but it is SD. My understanding is SD is perfect for current DVDs. However, it can't show quality of future HD source. I will probably use new plasma for at least 5 years. How important is it to buy HD at this time? How much will we exposed to HD source in next 5 years? Has anyone thought about this?