I've ordered a brand-spanking new 20" Core Duo for myself to take the place of my mini. As i'm in halls our Internet access is managed by the mac addresses of the machines. I've emailed support several times now about how i'd go about changing the address they have, but had no reply. In case this all goes pear-shaped, is there any way i can change the mac address of the new iMac to the one of the mini? I'm going to keep trying the halls support, but if anyone knows if i can (and how), that would be amazing.