The cheapest I've seen is $669, on the internet, of course. Check out priceworld.com and/or cnet.com.
Everytime I check e-bay, the bids are always much higher than what you can get them for. As a matter of fact, for this type of merchandise, I've never seen even a decent deal on e-bay.
I was going to get one myself but I live in Boston and my rent just went up, again. Second time in six months. Better save my money for food.