I have been looking for a real 3D 6ch helicopter over ebay and other sites. I have found few best low price chinese 6ch helicopters. Interesting more stable "Flybar less" versions seems to be new trend which replaced gyros. Here is my site with interesting reviews and product specifications and lots heli stuff. Must visit www.rchelicopterzone.blogspot.in.

The newbyes of lowprice flybarless versions seems quite interesting
Titan Trex 450 Metal Review
Align T-rex 450 Review
Wl Toy 2.4g 6ch V922 Review
Walkera Master CP Flybarless Review are ready for enthusiasts!