My league, Donruss Mexpo, is entering its 7th year and is converting to a dynasty league. You may keep zero players or your entire roster. You may sign players to contracts, cut them, buy their contracts out, trade them or even draft prospects in the annual summer draft. The league will also have a minor league called the Donruss Tyro - giving you two chances to win.
We may have a spot open for someone who is very interested in this ultra-competitive league. The annual entry fee is $25... which is just a nominal amount to keep it active. Go to this website: http://fleagues.proboards.com/
That has our current discussion thread going on about the rules for 2009.