I would have to agree with everything said by Jason EXCEPT that I don't think he is giving their bite enough credit.
I had one latch on to me...and it didn't just bite, it RIPPED. Seriously, like a dog ripping into something. Others I've talked to have reported the same thing with these guys. I bled through about five bandages, and had to explain to everyone I got the wound in a battle with a 9" gecko.....and that I lost.