Material presented at the 5th Annual Cargo Aircraft & Operations Conference in Italy, 31st January – 1st February 2007 is available as downloadable PDF here:
You'll find presentations a.o. of Airbus and Boeing on the freighter market, current fleets, new-built cargo planes, and freighter conversion programs. You'll also find various analyst's views on freighter financial values.
Enough stuff for a long and interesting thread.