Come join me at Las Colinas Country Club! We are about 6 weeks away from being fully re-open after a long renovation - new greens, Zoysia fairways, redone bunkers, teeboxes, etc ... pretty much a full renovation. You might be able to get a better-than-normal deal right now too, since I'm sure ClubCorp is looking desperately for business. Also a pretty big, active tennis membership and facility - one of the only clubs in the region with both outdoor and indoor tennis courts. I don't play, but I do use the workout facility a lot.
If you live toward downtown/east of 45, DAC would actually be great. I don't know a great deal about the membership demographics, but I know they have great pool/aquatic area, which might lend itself to younger members with kids. Plus, 2 golf courses is always nice, IMO.