For me the change is still evolving. Last year it was about getting the bike outfitted with lights for night riding and also getting rear panniers so that I could deliver my cookies by bike instead of by car. I am still a little pannier crazy. If I see an interesting one on eBay, I will likely bid on it because I don't think a bike can have enough little panniers. The rear panniers I have purchased, however, aren't really suitable for touring since they cannot be fully closed. Therefore, they are not waterproof. The next set I get will be for touring.
This year my focus will be on getting equipped for touring, especially the camping aspect. Since I am starting from scratch with nothing in that regard, I suspect my first purchase might be a tent. I may just go with Coleman equipment down the line as much as possible.
I have the dog trailer that I can use as a regular trailer as long as I don't overload it. It can do just over 40 lbs, and I sure would rather have a trailer hauling the larger items than try to overload the bike.
One of the things I've been thinking the trip will be good for is stoking my creative writing as I want to use the trip to do some writing. I mean writing other than blogging. That would mean bring along at least a netbook and possible a full sized laptop since my preferred writing medium is MS Word.
I just wish the time to tour was closer.