I use my macbook for music.... about six months ago one of my usb ports stopped working okay I still have one working all I need for my midi controller ....couple of months ago I thought maybe i should backup all my stuff, anyway got about halfway and you guessed it the other one goes.....my thinking here is that I have a fully functional firewire 1394 port....I use it for a for a focusrite saffire pro 24 audio interface....all I need then is a lead.....but which one and where to get such a lead..... any help with this would be much appreciated.....oh yeah and I live in Portugal......