I agree that the trex450 is a great heli but don't knock some of the cheaper RTF kits from Hong Kong, the esky line of heli's especially have been getting very good reviews. I have 3 esky (1 king2 and 2 belt cp), 2 trex 450 (SE and XL) and an HDX450V3 as well as a Trex 600N Pro.

Of course the larger and more expensive heli's fly better and more stable but the esky heli's are fun to fly as well.