I actually went to St. Marks again last Sunday with a couple of friends. I only shot a few sheets of 4x5, but it was fun nevertheless. Here's the results (the first shot is with the Nikkor 300mm f/9, the rest with the 90mm f/8):
This last one was my first-ever T-Max 400 negative. I developed it in Pyrocat HD 1:1:100 for 9 minutes. This is a classic combination recommended often, and it didn't disappoint. The grain is about as fine as T-Max in Rodinal despite being a 400-speed film. I definitely will be using it again - I honestly don't know why it took me so long to try TMY.