I would like to replace my Sony VPL-HS20 (720p) with Sony HW10 (1080p). The room is light controlled, movies only, screen DA-LITE 92" (16x9), throwing and sitting distance 11'-12'. A few questions: 1. will I notice significant improvement with BD? 2. will I notice any improvement with SD? 3. any suggestion to buy something else? Panasonic AE3000, Epson 6500UB, Mitsubishi HC7000,....? Appreciate every advice, every opinion.