I was at TRU this morning, shopping for my kids (no, really...Dora and Thomas stuff) and found the new TMNT sets. They had everything from the Kraang set ($17.99) on up to a Sewer battle set ($65 ish). I noticed that there isn't a real cheap way to get all 4 of the Turtles, as I only saw Raphael in the Sewer set. Of course, they had the usual TRU price gouge as well.
No pictures as my phone is on its last legs and the camera didn't want to work today. If you're made of money and/or can't wait a few more days, now's your chance.