I run a one-year Yahoo Rotisserie league going into its 8th or 9th year (Rotisserie scoring is category based scoring, i.e. in a 12 team league, you get 12 points if you're leading the category).
Anyhow, last year I think we had 14 teams, and I usually recruit a few members from these boards to fill out final spots.
It's very active and a deep draft. However, it's not free. It costs 20$ to join with all money paid out to the top 2 or 3 spots depending on number of teams. This keeps all managers quite well engaged through-out the season.
Send me your email here or by PM if you'd like to join.
Draft will be an online draft via Yahoo, likely on the evening of Sat. Sept 24th.