mythtrip... i just got the VTL IT 85, and wasn't sure about biasing either. it wasn't a big deal! i just read the directions a couple of times, and went to radio shack with the catalog numbers they referenced in the manual. i got a little plastic screwdriver at radio shack too. total cost was about $35. got home, easily took off the cage, and everything was clearly labeled on that map of the inside of the amp.... it was really easier than i thought.
good luck..
good luck..