Migrating from PPC Macs to Intel Macs:
How to use Migration Assistant:
Troubleshooting Firewire target disk mode:
Just had Exact same problem today.
My solution was ...
Yes turn off fire wall, and also on the PC, go into control panel and "User Accounts" and turn of UAC. User account control. OFF. Save settings.
Then , reboot PC as well as Mac and restart process with Migration assistant and it will work.