I just ran across this post at Big Computing. On November 14th, there will be an R User meet-up in Washington, DC (Tyson's Corner) led by Mike Driscoll about using R for sabermetric analysis (linked here). I will actually be home in Maryland for a couple weeks, and likely in DC on that Monday so there's a good chance that I will try and stop by this meet-up. If anyone else is in the area and would like to come by, let me know. I always enjoy meeting fellow statistics/sports dorks. I imagine this will be a great extension to the tutorials that I have had here, coming from someone with much more expertise in statistics and statistical programming than I.
Hat Tip: Kirk Mettler