That would be a far better question, because there's no SQL command to add drives to a server. 😉
Firstly, you don't want to move the binaries, as that would require a reinstall of SQL. To move database files, ALTER DATABASE ... MODIFY FILE, then take the DB offline, move the files (via Windows Explorer), bring the DB back online
Was always going to let the binaries stay put on C:\, I think MS still recommend they reside on the same drive as the OS.
Couple of further questions please....
Should the system databases be best moved in any particular order?
Any objection however to scripting out the file move part?
Leave the system dbs not much point in moving them as already stated, for help moving the user database files see my article at this link[/url]