My local Target recently had a price cut (not sure if it was temporary) on the EyeToy: Groove bundle, down to $39.99. Not too great of a deal, considering that Walmart had the original EyeToy: Play bundle for $15 in some stores (major YMMV), but it's worth a trip to your B&M.
I heard about EyeToy: Chat, too. Supposed to have text chat rooms, voice chat room, and all-out video chat sessions available. It's coming out in Eurpoe first, and there's no word on a U.S. release yet...what I'm wondering is if someone without the USB camera can still get the EyeToy: Chat disc and participate in the text and voice chat rooms.