Does anyone know a good spot in the DFW area to catch some Large Bluegills?

Lake Whitney, Lake Weatherford and Meridian state park are the closest places.

I've got a good share of decent sized gills out of Hubbard, but do even better at Richland Chambers (if you want to make a short drive out of DFW). If you're going to go to RC, then you may as well take a few extra miles and go to Fairfield instead, though.