I am the organizer for The Mesquite-Garland Stay At Home Mom's Playgroup. We have activities all over the area: Mesquite, Garland, Forney, Rockwall, Dallas, and more. I have a 4 year old daughter, a 2 1/2 year old daughter, and a baby boy that will be here in June. I've lived in Mesquite most of my life and until I found this group I only knew 1 other SAHM.
Our group has at least 3 playdates a week (storytimes, bounce houses, potlucks, sprinkler parks, picnic, ect.) and we also have Mom's nights, couples nights, family events, a book club, an active message board, a freezer cooking group, and more. Our group started in December of 2006 and we all have a great time. The only requirement is that all interested moms first attend a public playdate (for safety reasons); pay $15 a year (after trying the group for a month); come to at least 1 playdate a month; and be respectful to the other members.
Anyway, I hope you'll check us out.
http://playgroup.meetup.com/467/
We are a DRAMA FREE group that is really focused on building friendships for our kids and ourselves. The group has been such a blessing for me, so feel free to contact me with any questions.