This article on the recent Tonbridge heist (a bank robbery worth millions of pounds) offers a fascinating look at what smart criminals do with stolen money — and in the process provides you with loads of tips for handling heists in a modern RPG. “It’s not the robbery that separates the amateur from the professional. It’s the way you deal with the money afterwards.”
Update: The site linked above has now made the article pay-only. Sorry about that — I won’t link to them again.