Thinking good thoughts, Kathleen!
Now that prep has begun, I want to say that reading most of this thread (I'm still plugging through it) was a tremendous help in not letting me feel overwhelmed once I got all of the info and documentation I need to read.
I'm glad that as soon as I was notified I was accepted into prep, I started jotting down ideas, then preparing outlines for articles/blogs. I put a google alerts on for keywords related to my topic and any time I found an article of interest, I bookmarked it for ideas.
I'm taking a bunch of notes while reading over the prep documents, especially in areas I feel I'm weak (identifying the best META keywords, for instance), but also in regards to what they're looking for in content.
I've fleshed out 10 pieces of content so far. I've come up with 12 solid categories and am trying to select 3 more strong ones--I have some, but want to pick the best. I plan to have at least 1 piece of original content for each category, but definitely want more than that. Fortunately, I've discovered how much I love my topic and writing about it has been easy.