We are planning to go June 2013 as well. Our kids get out of school early, so it will likely be earlier than what you two are planning.
We went in June of 2011 (our first WDW trip and our first "real" family vacation!), and DH thought we'd wait three years, but the kids can't wait to back! I wish we could go sooner.

I'm already thinking about things, and it's more than a year out, so I feel silly. But DH's work schedule won't allow any trips this summer (not even to visit his parents like we usually do) so that's why I'm already focused on 2013.
We booked our 2011 trip through my SIL, who is a
travel agent, and I never get any paraphernalia from Disney at all... wonder why???
I keep hearing about people getting PINs and I'm jealous. Do you get them via email or snail mail?