Yeah, this Joker is completely different - and from the pics we've seen - way better. I have the older one as well, and while it is currently displayed with the rest of my DC lineup, he looks tiny and out of place. I'm really looking forward to this new version, and hope it is somewhat easy to find. I still question including such a "big name" like this in an exclusive wave. I can see some of the others in this wave, but the Joker has to be on of the top 10 (if not five) DC characters to the general public.
On a hopeful note, our local WM was resetting their toy section today and had a space for DCUC figures for the first time ever. I hope that is a sign that these will be a little easier to find than last year's WM wave - which never showed here at all. I'd still like a Riddler (and maybe an Atom), but like Brent, I don't want to pay $40. From this wave, I'd definitely like the Joker and Man Bat - and maybe a couple others (Beast Boy, probably the Black Batman, and maybe Power Girl).