I read about a nice cource in Japan (of course) that had Cams and Digital recorders in the driving ranges.

You go in, put a $1 into the device.
I belive its voice activated. The translation was a bit poor.
You get like 6 swings recorded for $1.
You line up, do a couple of practice swings, then when your ready to smack the ball. You say "go" or "ready" then go for it.
The cam records around 5 seconds of high speed digital and stors it on a chip. you can do this around 5 - 6 times.
Then you take the chip / disk / tag or whatever into a lounge and insert it into a TV Unit. There you can see your swing, play, slowmo, reverse and so on. Then if you wana keep it, you have to pay to have it put on a chip for you. Its like $20, but you can keep the 5 vids as long as you want and bring it back when you want to review it.

Awsome huh?
I belive its ony from one angle though. Side.