Oops. Meant to add a link:
Also, I've been meaning to post a note for Brooks, the swim director at the FWB YMCA.
He has a Master's swim going on Mon and Wed nights at 7pm. I've been doing it, and think it's a pretty good workout. He's helped me with my form and swim fitness is definitely benefiting. Workouts have been between 3000-3500 yards, less if needed. There is a charge for it: $25.00/ month for members and $50.00/ month for non.