I was listening to This American Life's latest episode about pets, "In Dog We Trust" - and one clip was about this guy who started a venture to sell videos that cats find highly entertaining. It's basically footage of birds and squirrels, and apparently cats get quite excited by the sounds and/or sights of it. Interesting idea, though I'm not sure I want my cat getting hooked to the TV, lol. Anyone ever tried using anything like this? I suppose it could be a great idea if you're leaving the cat at home alone for a little bit. Here's the link for the one they were talking about, called Video Catnip. http://www.cattv.com/