If you're still looking for a league to get into (possibly long-term, but feel free to split after this year if you don't like it), then I have an opening in a keeper league that uses IDP. The league has been on Yahoo until this year, but we're trying out MFL since they support slow IDP drafts.
Some of the players on this teams roster: Peyton, RandyMoss, MJD, Gates, NBarnett & JPhillips
Obviously, the draft is underway and we've dealt with a problem child that never learned how to play nice in the kiddie sandbox, so it's not an ideal situation you'd be stepping into. Other than that, we are all knowledgeable and experienced owners, I've played in numerous leagues on all the major fantasy sites over the last 6 years and have moderated in some fantasy football forums, etc.
I'd love to give you more info if you're interested in this opportunity, even if you haven't played with IDP's before... it's not that complicated. Email me or reply here and I'll contact you.