Thank you for all your hard work and dedication over the years, Jeremy.
You've really helped me and a bunch of other people learn a lot about power supplies and electronics in general. Several knowledgebase projects, inspired by the regular reviews and active forum commentary, and a ton of quirky humor later; I think it's safe to say you're leaving quite the legacy behind you.
It's perhaps a bit of a missed opportunity that you didn't have an apprentice to pass the baton to (but there's still time for that I suppose) 
Either way, while I am sad to see you step down, I'm actually really glad you've decided to commit to writing. Having read a sample of how your mind works, I have a feeling I'll be a proud owner of a copy of your book, whenever it sees the light of day.
Oh, and, why not accompany a high-quality narrative with some nice photos? You seem to have a knack for those too, it could make for an interesting combo... Just a thought.
Careful what you wish for... You just might get it.