I have recently acquired an NFlightcam Plus. This does the job nicely, recording audio from the intercom and tracking your position via an internal GPS. The propeller problem is virtually eliminated with the use of the filter supplied. The camera works in either 1080p or 720p. The only downside is the price.
This video was shot using the Nflightcam. The small picture in picture was recorded on a Jumbo 808 keyfob camera stuck on the coming with velcro. I used Adobe premier to edit it and splice in the PIP.