I've got an Infocus 4805 as my main video for my 990. And every time I want to make a settings change on the 990, I don't want to have to fire up the projector and waste bulb life OR have loud fan noise while I'm trying to calibrate.

So I found a good solution.

CompUSSR - 5" Norwood Micro B/W TV with a composite video input. It only has DC (probably have to get AC from Radio Shack) but it takes 10 C batteries. Works like a champ. It's light, portable and makes it easy to make 990 config changes.