Q: Transfering list of installed ports to a different machine?

Hi all, I'm in the process of moving my stuff from my good old G4-Powerbook to an all shiny new MacBook Pro. I wonder wether it's possible to take over my installed ports from the Powerbook to the MacBook Pro. Simply copying /opt/local shouldn't work, because the installed ones are all PPC-Binaries. Is there a way of rebuilding the same list of ports without the need to hack every port that "port installed" listed on the old machine into a terminal on the new machine? I may sound confusing, to make clear what I'm searching for, something like: Old machine: ports installed > list_of_ports.txt New machine: ports install < list_of_ports.txt TIA, regards Ralf