oczad: At 99 bucks, you can't beat the Lama:
http://www.techmodelproducts.com/lama.php
This is an actual hobby-grade product, not a mere toy like the others. It's perfect for indoors, and is very easy to learn to fly.
Here's an older vid of mine following some upgrades. It flies about the same stock, but is a bit more stable in it's stock form:
http://video.google.com/videoplay?do...80519368&hl=en