Hey, I'm looking at the 42in and 46in Samsung DLP HD-ready RPTV's. Last years models (have a "P" in the model number) can be had for $300-400 less than this year's models (have an "R" in the model number). I'm not sure of the exact model numbers and the exact savings, since I've just started researching my purchase. Bottom line: Is it worth saving the money or is one year difference a major step in the technology of the two tv's??? (I'm talking about new sets; not a used one, just a older model that hasn't been sold yet). Thanks in advance, Rob p.s. For what's it's worth, my viewing would be 50% Xbox 360, 30% Cable, 20% DVD's.