Alright Chris - since you're around:

JR and I have been watching this development with some interest and it looks like you may have a modicom (sp?) of experience . . .perhaps.

What I've seen and priced for 120 mm fans equals to about 1,200 for a decent power plant (1 set of batteries). Have I got that right? Can it be done cheaper?

Certainly, the development of the LiPos, brushless motors and ESC's has really made this interesting @ the realistic 9-10 lb thrust level; got some old airframes begging for such motivation at a local, not as turbine-friendly field...