You basically get this...
http://www.flickr.com/photos/33946021@N04/5535735039/
and this...
http://www.flickr.com/photos/33946021@N04/5531374786
... and most of the other Delta 3200 shots on my stream. I shoot it at either 1000, 1250 or 1600 and tell the lab to develop normal. I don't even tell them how I shot it. I've done this at two different labs with identical results. Most of the time I use 1,000. What you get is a nice separation of tones but a high ISO to work with. Where as if you push Tri-X to 1600, you will get a lot of blocking in the shadows, which I love also, but you don't always want to do that.
Edit: I should say that the one time I shot it at 1600 and told the lab to pull one stop, I didn't like the results... extremely low contrast was the result.