Yup there are high definition front projectors, starting around 2500 for LCD, 5000 for DLP (better black levels, brighter generally). If it is a standard 3-gun big box rear projection, whether high definition or standard definition, the guns will get out of alignment, just the nature of the beast. If you have a rear projection set and see a sort of halo, that's exactly what that is, you need to get it aligned. . . it's not that hard to do, I've done it on my own before, just need to take the time to do it. There are new type of rear projection sets that use a single lens, such as the Samsung, Hitachi, Panasonic DLP (digital light projection) and Sony LCD rear projection sets. . . these sets go on tabletops, are a lot smaller, and weigh a lot less. The 50" Samsung weighs around 90 pounds and is like 17" deep, really small. If you got the green, a DLP tabletop projection set a good way to go, I really like the Samsungs. But with either the LCD or DLP sets, they use a bulb to create the brightness off a single lens, these bulbs need to be replaced, average 5000 hours a bulb, easy to replace. With one lens/gun, no need to calibrate.