in case you don't get good recs in your desired location, alexandria myotherapy does fabulous prenatal massages (and under $100). several nesties have been there and had good experiences. i see sherri. HUGE bonus - massage table has a belly hole so you can actually lay face down on your stomach!
i go to massage envy monthly for massages, but in my 9th month, i plan to budget a couple trips to AM just for this table!
my doula is a licensed massage therapist, i'm going for my 1st prenatal massage this wknd. she charges $85 per 1/1.5 hours. she also does induction massages which have worked with her previous clients. PM me and I can send you her contact info. she's based in annandale/falls church area.