I am also in the DC metro area (live in Silver Spring but work in DC). I might be interested in reviving a users group in our area. I also have a A2000 as a A2500 plus others (see sig).
I am in Alexandria, VA - just outside DC. I might just be interested in forming a group. Last Amiga user group I properly belonged to was ALFA - the Amigoid Life Forms Association in Hampton, VA back in the early '90s. :-)
bp