Mommy & Me Classes

I just had my second baby on April 24th and am looking for some mommy and me classes and other activities to get us out of the house to meet others with young ones.  I also have a 3 year old son who will be home 2 days a week from daycare.

Any suggestions?  I think I'm going to be signing up for the Second Time Mamas class at Amma Maternity in Edina.  Are there other classes/events that you can recommend?