I was just at my local LEGO store (Bloomington, MN, MOA style) and noticed two Toy Story 3 sets that I wasn't familiar with (they're not on S@H). They were the Trash Compactor Escape and Western Train Chase sets that BlueDragonZ posted about. What struck me was how they were in white boxes instead of the blue that many of the first generation Toy Story 3 sets came in.
I didn't buy either myself, as that wasn't what I was there for, but for those of you eager for these sets living in the Twin Cities areas, I'd advise you to check it out. The rest of you may want to check your local LEGO stores as well, as these are probably hitting the various stores around the country as well.
What was interesting is that when I walked in, one of the employees approached me saying they'd just got in a bunch of new sets, including the Toy Story 3 sets. So it sounds like these are JUST hitting stores now and I happened to get lucky and go in on they day it was happening.
The beauty of a LEGO MOC is not the elements that go into it, but the way those elements are put together.