Martin,(posted 8596 days ago)Delta 3200 is a grainy film no matter how you develop it, though push-processing increases the grain. Shawn makes a relevant point about the ease of processing it yourself, but it is possible to get decent results from an outside lab. I wouldn't just drop it off at the local drugstore, though. If you have a professional lab that has consistent procedures for b&w development, you can get good results with a little practice and experimentation. I have a friend who uses TMZ at EI3200, then has his pro lab process it with a 3-stop push--works great for him.
I generally use D3200 at EI 3200: I underexpose it by two stops (it's nominally an ISO 800 speed film), then develop it for a LONG time.