I have seen both the Infocus 4800 and 5700 into action. Depending on your visual preferences (4:3 - 16:9 respectively) they are both excellent value for money and performance. I bought the 5700 and am very pleased with the result. I use a standard fixed 16:9 113" screen, and the Denon DVD-A11 most of the time (RGB) or a Pioneer 2900 LD (S-Video) or Sat (Composite). All video interconnects are Supra
http://www.jenving.se/. They all produce excellent pictures with the 5700. I have yet to test the DVI connection between the Denon DVD and the 5700.
Costas