Hey there - I have run a league on my own website for the past 10 years! We have developed a unique set of rules that score pts for normal on-field events as well as the occasional bonus points for off-the-field criminal activity. The league varies btwn pay and free. Most of the guys have been in this league for years.
Currently we are running 2007 for free with an option of putting in $20 for a side bet. In your first year you would want to go with free anyhow since teams can franchise three players. I can send you lots more information if you e-mail me at mailto:firstname.lastname@example.org