I wanted to share the website below with everyone if they are in the mood to pick you own this year. The listings are by county (surrounding DFW) and include what is available. I would highly suggest you call the farm to get directions and to see what is in season before you head out. Also I make to claims to the accuracy of the information (i.e. phone numbers)
This coupled with several Slow Food Dallas member farms would make a generous list of local farms.