i'd definitely be interested in getting involved in just a "hey, we're young, hot, awesome Greek girls hanging out" kind of group.
(obviously, i live in NoVA too!) also, if you're looking for ways to stay involved in Greek life, check and see if you're org has an alum association in the area - i was lucky enough that the DC chapter of my AA has a lot of young women i've become good friends with. i also serve on a chapter advisory board for a collegiate chapter and have met some neat people that way as well as having the chance to be involved in a completely different side of my sorority. hope we can work out a time to get together!