And depending on the SAN and the SAN administrator, I would create some test LUN's and practice the move first. I've seen windows/SAN administrators get confused, and move a LUN and end up formatting it or otherwise fail to have it arrive with data intact.
It is VERY easy to move on most SAN's, do not misunderstand. But if they haven't done this before, have the windows/SAN guys practice first. Indeed, put a database there and you can practice also.
PS. Don't forget to move the log files also. Even if empty, it is simplier to attach them in place rather than trying to recreate them.