I dabble, I just bought a Blade MCX bind-n-fly last month. It is super stable, almost to the point of not being much fun. I have a Sabre which is junk but it teaches the basics. I also have a Heli-Max 450 that I never finished putting together, maybe I'll work on it during the Summer. I have a Spektrum DX7 which I bound to the MCX also.
I did a lot of research when I got my heli. I'd probably reccomend the same or similar setup. A Spektrum radio with 400 sized electric heli. A T-rex is a good choice because you can find parts anywhere. Spektrum radios are probably the future of RC, no frequency pins or worrying about shooting someone down, the price on them has really come down too
One of our members Steve H is heavy into it, he sold his tear so he doesn't visit here much. He is a mod at the heli site
www.runryder.com he'd probably be the one to give you better advice