Do you need your fantasy baseball fix right now? Try CSFBL: Computer Simulated Fantasy Baseball League. Since it uses computer generated players it allows you to simulate a baseball season any time, anywhere. You can actually play a season quickly by joining a league that simulates up to 8 games a day. It allows you to design (at least in the abstract) your stadium, your team's playing philosophy, and the kinds of players you will develop and draft. You play against other similarily addicted baseball geeks.
Free as far as I can tell.