RE: video camera on a T-Rex
I just did the CVS Camera stuff. Not for my trex but it's light enough to carry one easily. I've removed it from the case, wired a couple record/delete switches and power so it runs off the RX for power. I'm planning to take up in my .46 plane on Saturday. If the video comes out good I'll post a link to it. For $29, it does 20 min of 30fps video at some odd resolution like 384x288 but I'm taking it to 640x480 for Saturday. If I can get ahold of a scale I'll weigh it.
It's worth checking out.