I had a great time at the DLS, MSLUG, and a tiny part of OOPSLA. I haven't had time to write up the experience, but I'm off the hook now that I found Dan Weinreb's blog and his lengthy and thorough review of OOPSLA. He covers everything I saw and then some.
The only thing I'd add to his account: if you're visiting Montréal, Yannick is a superb guide.