Where should I start

[eluser]nZac[/eluser]
I have been so impressed with CI and it's community support/documentation that I want to move a rather large site over to a MVC style but I do not know where to start. I have about 10 function files that have a bunch of procedure based functions that get called throughout the site. How do I take these files and all the stuff that they do and work them into the MVC.

I am a big proponent of learning by doing so if you could, point me in the right direction (such as a book, or another forum post) don't just say do X Y and Z or else I will not learn how to do it in the future

Thanks so much for your help!