We face this problem in our business (a law firm). The current solution is 1Password. I don't know how to share a single data file among everyone so the problem is keeping all of the files in sync as passwords change. And then we have employees who use 1Password for personal passwords. This means lots of hand editing.

We would throw money at a solution to this problem. Give us a shared password vault for the enterprise login stuff while letting each person run his/her personal life untouched by the business username/password stuff.