I have a 14' X 22' shop with a 12" table saw, 14" wood band saw, floor drill press, 10" Atlas lathe, Burke # 4 horizontal mill, 4X6 metal band saw, 6" jointer, 13" planer, two metal shelving units, overhead wood stock storage, a 24" X 8' workbench, various shelving and tool storage units and a wood stove to warm my butt during the West Virginia winter. It's tight, but adequate. I think the secret is to have lots of storage and don't be afraid of reorganizing to suit your needs.
Good luck.
Good luck.