Here is a link that goes to a great article here on TE.

http://www.teamestrogen.com/content/asa_century

I'm training for my first one too. This article is the only thing I've read specific so far. I kinda thought it pretty much covered everything I really needed to know. I'll be looking up your reply links posted here too though.

I have the general idea for mileage etc. figured out. I need to work on the food and rest. A lot of that if you ask around to other cyclists who hold the century badge is "personal preference". What works for YOUR body, fitness level, etc.

I have a simple paper journal I bought at the drug store for $5 to write down all my century related stuff. How I felt after a ride, anything else happening in life that could be affecting my riding performance, etc. Nice to be able to look back at as you progress.

Sounds like you have your event pick out. But, I also asked around to those same cycling peeps on which local centuries might be best for a first time. I then also contacted the club president of the century I am training for out of town via E. He was helpful w/info and encouraging.

FWIW, good luck!