Hey Thomas, the stout I am having a pint of now (served at last meeting and recipe posted) is something I am really pleased with. I just used normal "minute" Quakers' Quick Oats. Granted, I didn't put a huge amount in, but this is the first beer I've ever brewed that I will be re-making an untweaked copy of.
I've also used regular (not quick) Quakers' Oats in the past with good results.