Scotts Dale Farms has a great variety of traditional Japanese garden plants including black,white,red pines, maples, camelias, azaleas, etc. They even have some pines that have been pruned into traditional shapes. There is also a wide mix of dwarf pines and weeping spruces, and various other plants that can add interest to a garden. One thing I saw that was really interesting was a cluster of bloodgood maples trained to a bamboo trellis. Interesting idea for a 3 season screen. Prices were not terribly high considering the maturity of many of the plants.
Worth a visit if you live in the north Atlanta area. The staff is courteous and helpful.