Hello Garuda,
The first stunting montage I uploaded to Youtube was on GTAV PS3. I used a videogame capturer which was borrowed and I don't remember the name of it. By the way, I manage to connect the PS3 to a DVD player/recorder. Iconfigured the DVD player to see the PS3 image in the DVD channel, and recorded my games on DVD. Then I just had to put the DVD on the PC and extract the clips I wanted.
I know it is really complex, but it gives better image quality than recording with a videocamera, and in my opinion, video quality is very important.
Hope you have a nice stay on GTAS, and I hope you have fun stunting ^^