At any rate, with the rangevideo setup, i estimate, with a 500mah battery pack, ill be adding 4.5oz of weight to the plane, which isnt too bad (51oz or so total weight). WIth the RV setup, i would hook up the video receiver to my laptop USB capture device to record the video.

Here are the range video parts i was going with, if this route:
$295 combo kit with kx 191 camera (is this cam pretty decent, even with night time ability)? This combo set seemed to be about $50 higher than i thought buying individually would be, but i may have been missing a part or two.
$50 Twinstar mount kit
$15 TX Battery (3s 500mah 20C 11.1v with JST female? plug, 41.4g) *should power things for 51 minutes (2 total batteries in plane, this one plus my 3200mah pack)
$24? RX battery pack with female deans plug (800-950mah? cellpro brand perhaps?)
*I'm not clear on whether the rangevideo rhino battery pack can be charged by my 2 year old fma direct cellpro 4s or if fma has an adapter.


OSD options?

elogger, complete OSD/GPS, $309 total plus (Fma copilot needed?)

  rangevideo OSD, these guys offer a $355 package, but it includes GPS return to home, which is great, but if i just want basic OSD that can be interfaced easily, its a bit pricey (though i think for $355 you must add fma copilot to it, so higher cost, and probably the same is true with elogger)

  cheaper OSD, but again, not sure how it interfaces or if it does onboard recording of a file: http://www.gentles.ltd.uk/gentvu/altiosd.htm ($174 US)..

cheapest OSD, remzibiOSD, $117 or so total, even has some limitted GPS, but no return to sender (can this return to home be added on?)