PM me your email and I will add you to the official DC T-Cell list.
We generally meet on Saturdays, although that might be changed depending upon everyone's schedule. Location is as Gags said, typically in Arlington, VA. Yet again, this is not a set location, and we can rove around a bit.
Where in MD are you located?
Gags - If you would like to grab the sled for now, you are welcome to have it. Provided you promise to bring it to the T-Cell meetings. I am pretty much restricted from using it until after my next surgery, so it is just sitting on my floor at the moment.