My son is 13 and gets some occasional gigs as a DJ at the pre-teen dances in our area. He uses a 2010 MBP (OSX Mavericks) to play music and would like to have an extra monitor to use while spinning. He would like to use the old 2008 15" MBP Unibody (Snow Leopard 10.6.8) as the monitor. This suits me fine as we already have the old beat up MBP and it's probably better to have him carry that thing around than a nice new external monitor. Is it possible to do this? Firewire? What are the settings required?