Probably the best Korean in town. Expensive but so is Ah-ri-rang (their competitor). This place introduced me to korean food so I can recommend it for people looking to try korean. They have unlimited soup (jigae?) and hot/cold water to make tea with if you want to don't miss that.
If you're more adventurous try a Jigae (korean stew) or Dolcet Bibim Bop. If you're lame then get Bulgoki like everyone else :-p