Posting an update! I couldn't help buying the Flyzone Inum, despite the numerous complaints about it's poor flight characteristics (namely that it always wants to turn left). I tried it out and posted my experience with it as a new thread. I talked about my efforts to fix the problems it has and it flies much better now.
Here's the link:
http://www.rcuniverse.com/forum/arf-...-inum-rtf.html