I have owned my 4805 since just after they came out and I love the unit, really great for the price However, their are two items that are starting to wear on me. 1) Fan noise 2) The black color "shifting" where blotches appear at times during all black or very dark sequences. Both are tolerable but the noise issue is really my biggest reason to upgrade. But in all honesty, what unit in this price range is a good enough improvement to justify an upgrade? My main use for this p/j is of course movies via dvd and once in a while a hi-def tv feed or xbox 360 game or two. Please post all suggestions and their selling points. My upcoming room will be 12'w x 21'l and as far as I can tell the p/j will be somewhere around 12' from the screen, perhaps a foot or two more back at the max, suspended from the ceiling. PLMK-Thanks!