jakeb, I have bought my plants and trees (not that many yet) from Wichita Valley nursery on Southwest Parkway and Barnett. The folks there are kinda like cool old hippies, but they know their plants...especially the native plants, which is what they specialize in.

Thanks for the word on the sweetgum trees. I'll check into other options before going that route. Maybe some post oaks, as they grow naturally less than 30 miles east of my place. The bald cypress was recommended by the nursery owner I know...but it isn't a fast grower, is it?