Ford, don't know if you've tried this site yet, but the guys there are pretty much up on "E-helis"...
http://www.rcgroups.com/forums/forum...php?forumid=17
I just got one of the new Joker CX's (waiting on motor/esc to arrive) and I have to say that it is a pretty super piece... If your interested,
www.fxaeromodels.com is the us distributor and they have info on their site... This machine is 60 size and I plan to use the same 680mm blades I fly on my X-Cell gasser... They fly with 30 - 32 cells for 8.5 to 12 minutes (their numbers) depending on motor/battery choice... All in all, so far, a really nice machine...