I'll be staying at the Ritz-Carlton for four days and am looking for two good recommendations for dinner in the area. I would like to find great contemporary southwestern cuisine that won't totally freak my boss out when he sees my expense account (I'm allowed to somewhat freak him out.) I'm a chowhound first and foodie second, so a restaurant that fits both bills will work. Thus, I may be looking for something a little different from my fellow Philly chowhound JFK. Yo!