hrm... that's a hard one.... there is boot camp, but to run any of the decent sims in that you would have to have a screamin machine, so like you said that's probably not an option. The coaxial heli's could give you orientation, but would not really do very well at teaching you balance, since they balance themselves. But since you can already balance the one you've got in flight.. you might not need that training, and the coax heli might be just what you are looking for, especially if you want something to fly inside (and really inside only). If you would like to get a single rotor heli, you might look at the 4ch fp's (dragonfly, falcon 40, and the honeybee, as they are all pretty much the same thing), those can go outside better, but still not great. The other birds I would say you might want to take a look at on your budget are the honeybee cp2 (a cp heli fairly comprible to the blade cpp). If you've got about $40 more, I would suggest looking at a blade cp, or cpp. The cpp is a big upgrade from the cp ($91 bucks I think I figured), but only costs an extra $20 bucks.

On the coax heli's, I would probably stay with the CX2, it just seems to be alot better quality than the rest of the coax heli's out there, plus it's god DSM (2.4ghz that doesn't require a channel, and is alot better at not getting radio interference, and can also hook straight up to a dx7 without any mods, but not a dx6)

Hopefully that helps =)