We don't leave for our Jan. trip for another month or so, and I just locked up our reservation at the Swan for Dec.-2006. I'm still juggling the ADR's for the January trip, and I still have a bit of time before the window opens on the ADR's for Dec.
I think these two trips, however, are likely to be quite different. Jan. is a family trip with the kids and Grandma; Dec. will be the 10th anniversary with just me and DW. I think my first ADR on that trip will be the Luau at Poly, and the window opens up in a week or so.
Even so, these trips seem to be interacting a bit more than usual from a planning perspective. I ended up getting an AP for me since we had enough left-over days on PH passes for my wife, my mom and one of the kids for the December trip. The AP should cover me for both trips and also opens access to the DDE program. I think the $50 price will be more than made up for two or three days into the January trip; we have a group of six traveling in January.
I used Starwood points to book the December stay and plan to use FF miles for air transport (assuming Delta is still in business at that point

). I'll have the AP for my park admissions. We'll have to pick-up a ticket for DW. Otherwise, this may be the least expensive trip to WDW that I've ever done. Nice thing is it gives me a little more budget to play with for fun surprises for my DW for our anniversary.
Any suggestions on that score are welcome, although I'd prefer that you PM them to me; otherwise, I'd feel like I hijacked the thread. If I get responses, I'll post a new thread with the collection of ideas.