anyone have any reviews of this model? found a guy selling it BRAND SPANKIN NEW online for less than half retail price. i was in the market for one, and jumped on it mainly because it comes with 2 collars, and my buddy and I plan on training both our pups the same time.

anyone have any training DVD's laying around that they aren't using? i've done a bit of reading but i don't want to use the collar until I'm pretty knowledgeable on the subject.