Q: anyone know where to find it? i need it for a form i have to fill out.
A: Yep Apple Menu About this Mac Click "More Info..." Look down the list and in "Network" click on "Locations" In here you'll find loads of info including the MAC addresses. There is one for each kind of interface, so select the right one according to what you'll be doing. Chances are you'll want to quote the Airport one if you're going to be connecting wirelessly. The above is using Leopard. If you're on Tiger it may be a bit different, but likely to be in the same area. Rob.