Thanks for the help, everybody! Think I'll check out J&G Steakhouse.... sounds great.

@hppyheather, it's a client lunch, so just a couple people. no women, just a couple gents who work nearby.

Thanks, again, for all the recs. Will have to try Againn next time I'm down there...

-----
J&G Steakhouse
515 15th St NW, Washington, DC 20004

I'm planning to be in DC next week and could use any recommendations for a nice business lunch. Walking distance would be great.