The process took 2 weeks. I interviewed at Capital One (McLean, VA) in Sep 2007
Interview
There are both cases and behavioral interviews. The cases are quantitative, but not too difficult.
The behavioral is standard. They will interview you at one of their HQs and fly you in beforehand. You will be interviewed by actual business professionals and not HR
I applied through a staffing agency. The process took 6 weeks. I interviewed at Capital One (Richmond, VA) in Apr 2007
Interview
Applied to staffing agency on line. Contacted next day on job prospect. Interviewed by phone within 2 weeks. Face to face interview after 4 weeks. Finally placed 6 weeks after application. The process seemed long and somewhat mysterious based on limited information about the delay. The face-to-face was just a formality, in retrospect. Before the day was over, I was unofficially informed I would get an offer.