I am using FuzzyFinder with Vim to open files and switch between buffers. It works like a charm except when the current file I am working on has some changes. Vim wouldn\'t
Use the :set hidden option and Vim will hide the buffer until you come back to it.
:set hidden
You can also use :set confirm to deal with the unsaved buffer warning more conveniently.
:set confirm
I think you can use :set hidden.