A friend of mine has one and has had the worst luck getting it figured out. His came with the Sony camera. I was going to buy one until Istarted hearing bad reviews (
www.chasingame.com). If you are looking at one without the camera, do some research on video cameras. The list of cameras that comes with the unit is outdated, most of the sony cameras aren't in production anymore...just refurbished from the factory. You may try on ebay, I saw a couple of deals. Also, I wouldn't buy a camera unless you see the LANC port on the camera. I was at several stores where the spec sheet listed this option on the camera only to find that it wasn't on there.
Hope this has helped a little. I chose to go with the Recon Talon Extreme. I am much happier than my friend with the Eye.
Jeremy