http://discussions.apple.com/categor...categoryID=206
go here for fcs help not GFY..  not to many people on here are smart enough to use a mac so they have no clue's
anyways what you want to do is from final cut itself render out to .mov then use compressor for the rest..  I also use a program called IMTOOconverter..  but avi is shit quality so is wmv..  if you want to make wmv with a mac you need flip4mac to do so...
remember best quality you will have is going to be .mov  then use compressor to render that into anything else you want...  do not use final cut itself... if you have any other questions hit me up..  Ill be up editing for a bit