I don't understand why the AE2000 is always considered alongside the Sanyo and HC4900- it's at least $2.7K, so why aren't the Epson, BenQ and Sony thrown into consideration? I could understand if the AE2000 was <=$2K, but it's not...
From what I've read you have:
Sanyo PV2000-Z, Mitsubishi HC4900 -> Poor blacks/contrast, unless this is all your budget allows (720p DLP makes more sense in this price range right now)
Panasonic PT-AE2000U -> Dust Issues
Epson 1080UB -> Convergence
Sony VPL-VW40 & BenQ W5000 -> ?