I have an old mobo and some stuff kickin around that i was kinda thinking about putting in my car with a wifi card. I was also kicking around the idea of building a custom case and sub enclosure but I was worried that a sub would cause severe vibrations to the mobo and hdd, let alone the giant magnet. what is the best way to mag shield a speaker? tin foil? also... would the vibration just be too much for it, should i put the comp under a seat or somethin? i dunno... I have been kicking around this idea and when i get money i wanna start doing something like this. any thoughts?