A longer term concern is that I want to make sure I don't learn how to speak Japanese like a child -- I know from this list that Japanese has big differences depending on who is speaking to whom. And I've made the equivalent mistake in French already -- I forgot to switch from "vous" to "tu" when first addressing my French friend's 8 year old niece. (She giggled helplessly until her mother explained.)
When I went looking for resources, it was overwhelming. I have no basis for comparison -- but I know this list has expertise. Could those of you who have learned Japanese as an adult point me to your particular favorite text and/or internet resource? I do have a Japanese co-worker I can go to for pronunciation help, if a particular text without audio is otherwise a favorite.
For anyone who's curious about me, my language background is American English with enough French to get by, an embarassing lack of Italian & Russian considering how long I studied, and a recent start at teaching myself Danish.
[Edit: That should be enough resources to keep me busy for quite some time. I love this community. Thanks all!]