Busdriver330,
The guy you want to speak to has the callsign "Moonbeam Purple." He is a 744 F/O for Cargolux and apparently really enjoys his job - although he has talked about some of the recent labor/pay disputes.
Flying worldwide on a 747-400 wouldn't be a bad gig in my book. If you get the opportunity - go for it!
Moonbeam Purple is the man you would be looking for - hopefully he will respond to this post...
Cheers and good luck!