iRobot - Roomba [630 [bedbathandbeyond.com]
First post on slick and I know the link won't give you a price, it's just a reference point. You'd probably be better off calling your most local BB&B to check for availability and to make sure the price is right. I happened to just stumble upon this while going to BB&B for some cooking utencils, was just a bunch of slips available for it, at $100 off. Brought it up to the person at the main counter and they went to their storage shed and grabbed me a unit.
Someone in the thread mentioned a 20% off coupon you can apply to this, to bring it down to $160, you can sign up here [bedbathandbeyond.com]
Just ran my unit right before I left this morning for work and it seemed like it did a really good job finding the nooks n crevices of my floor layout. I was told these don't work well on thicker carpet, but I would say my carpet is on the medium - thick end and it seemed to do magnificently. I did a little digging and it looks like the cheapest this unit has ever gone was for $240 on Black Friday a while back. Happy hunting fellas.