In the Revit group there is an interesting thread ( ) discussing this sort-of subject. I do not have a Mac, nor a Virtual Machine on my Windoes XP based machine, but I do suspect that some of you out there are using AutoCAD (particularly 2007/200 on a Mac with either VMWare, Parallels or just plain BootCamp

Perhaps utilizing the Cadalyst Labs Benchmark Test ( some with Virtual Machine experience migh share their impressions or hard data results with the rest of us

Jim L