Hey there, I'm glad its workin ok for ya. I before you purchase a heli, I would review that website quite a bit. The guy talks about which helis are good and for what reason. While the TRex 450 is good, and made with good parts, he said he would go with the B400 because of the price/value. The B400 comes already assembled (though I have to be honest, I'm not sure how the TRex comes) but the B400 also has all the servos installed and should be set up for flight. The other plus, it comes with the Spektrum dx6i, which is a good radio, its a 7 channel heli 6 channel plane radio that is pretty awesome. If you bough a TRex you'd have to buy the radio equipment separately. Also too, the eBook the guy wrote is specifically for the B400, though it would work on the TRex as well. Also too, with the Spektrum Txs you can get a wireless connector for your computer to work with FSOne. So you can use your Spektrum wirelessly with the sim. This is cool cause if you want you can set up duel rates on the radio and don't have to mess with setting them up on the sim. This is cool because once you start practicing maneuvers, you can use the radio you're already used to.

Hope it helps.