Please recommend yoga/pilates classes in Herndon/Reston

[Anonymous]

I'm a first timer for either pilates or yoga, and would like to start classes (haven't decided whether yoga or pilates; all I know is I need something more than just running and I'm tight all the time). Please suggest a studio in Reston or Herndon, thanks. I don't think I'm interested in the Bikram (just sounds so hot!) but might be if I heard a good case. Thanks!