Don often attends the Macromedia user group meetings in San Francisco. There are two groups one with meetings at LearnIt and the other with meetings at Macromedia headquarters. They usually have different topics so both are of interest.
Waiting for the crowd to arrive. The BAAMUG, the group at LearnIt has held several of their meetings using online as well as at LearnIt. I've attended several of those meetings while in the middle of nowhere in my travels. It's nice to be online anywhere thanks to Datastorm and Motosat.
The real reason to attend, in person, is for the pizza!