I would go for a 1080p unit right off the top, and not even consider 720p unit. A waste of money, especially when you can buy 1080p PJs for right at or under 2k. I would even consider Epson Home Cinema 1080 or Panny 2000U if you can find one as they should be under 2k. My good buddy upgraded to my JVC HD1 and sold his Epson for around 850 or so. Ebay has these units at 1500-2000 and for that coin they are very good. The Epson 6100 as mentioned should definitely be considered.
Also @ your price range, definitely consider the JVC RS1/HD1. I sold mine for 1800 so surely you can find one around the 2k mark. Check videogon out for sure.