I just started a 16 team dynasty league on AOL League Manager. The roster consists of 24 players (1 QB, 2 RB, 2 WR, 2 RB/WR, 1 TE, 1 K, 1 Def., plus 14 bench spots). It's a PPR league with pretty traditional scoring. Each year, each team keeps 20 players and there is a 4 round draft for rookies and players not kept. We will have a live serpentine draft in late July sometime.
I don't think I'll try to get a league forum on the Cafe or anything, it will be run exclusively on AOL (which is year round). I'm looking for a group of active and experienced owners to join, so PM me or post if you're interested and I'll send you the info. Remember, this is a dynasty, so I want owners who will come back next year and the year after, no just drop out after one season.