You can pick up this Tachyon mini cam for $99 (http://tachyonxc.ca/tachyonca-ops.html
) that is made for paintball and airsoft.
Expensive?? It depends on your priority on airsoft accessories. I know of guys that spend $30 for a fake PRC-148 or $300 for a working FRS PRC-148 just for realism.
You spend so much on your guns and loadout and go out to play and come back with no video to show all the fun to your family and friends.
Sorry for being off topic.