I live in MD, not far from DC.
There are several bike shops/equipment shops which have tri gear (not simply bicycle gear), so they will be good places to also ask around, and many have rides. One of them is called Race Pace: http://racepacebicycles.com . I just noticed they have a group-ride page also: http://racepacebicycles.com/page.cfm?PageID=214
You'll find people around as you need them, and DC/Balt is close to many areas so you will find that getting to events is pretty simple (except for traffic, which can be very awful!)
If you need a house in MD, I'm selling mine :) ... 3 minutes from a major highway into DC/Balt, 5 min from I-95. Big house, great neighborhood, quiet, woods in back, near an aquatic center. I turned my wood-floored dining room into a gym - have my bike on a trainer in my living room!
Good luck in your job search and move!
Lauren
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Lauren Muney
certified physical fitness trainer
certified health coach
wellcoach
http://www.physicalmind.com There is no escape from your life... solve the problems and get on with it.
"Just tell her you love her and you think she kicks ass" ~AndrewinNH
"I'm moving [Lauren] to guru status" ~Last Tri in 83