We have an AL and NL version set up on Yahoo.
* Daily lineup/transactions management
* Auction Draft (Yahoo) is last weekend before the 'real' start of the season. NL only is Sunday, the AL only is Saturday (both at 4:30PM PST).
* The league follows standard NFBC format.
* $100 FAAB (Free Agent Acquisition Budget)
* 1450 Max Innings Pitched
* 162 Max games played per position
* Commissioner reviews trades (just like MLB. vetos only happen if there's collusion between league members, that's it)
* Standard Roto 5x5