As with most aspects of linux, simply adding an extra drive can become a chore and headache for those with no previous experience. Here is a simple way to setup a hard drive so that it will automatically mount on boot with friendly permissions so all users can read/write. If you need added security on a computer that others use, then you'll need to do some more searching on setting up permissions, but a shared drive will be suffice for most desktop linux users who are new to this.
