http://www.skillshow.com/splash.aspxI've seen a number of skills videos from both professionals and parents.
There's a reason someone invented the term "professional".
I once saw a skills video of "live" game action on a pitcher, and it was shot from ~ 75 yards away (the pitcher was about 1 " tall, and you couldn't see who it was...
Some services will have you submit your 30 tapes with a sheet of what you want included.
You need a video that demonstrates your mechanics/skills and is no more than 4 or 5 minutes long