I am in on the 17th, actually I am considering doing it this Friday as well if the weather cooperates. I've an appointment at my gym after work, but it is literally right on my commute route, and they have secure bike lockers.

Sadly, due to when I have to be at the office, I can't ride in with a large group that will be leaving from my area. Oh well, I wouldn't be normally commuting with a group anyway...