I was at a reception tonight for my department, and I happened to get into conversation with one of the attendees. We talked for about ten minutes, and it turns out he is actually very, very high up in a field I'd like to work in -- probably number 2 or 3 in the state -- and at the end of the conversation he gave me a card and said something along the lines of "well, I don't know if this will ever be of use, but here's my card, if you want to ever stop in and talk." I'd love to cultivate this connection -- and I would love if it lead to a job. How should I follow up on this? I was thinking that I should send him an e-mail in the next few days saying it was nice to meet him, and then in a week or two ask if he wants to grab coffee. Thoughts?