Following in the steps of Steve Dembo of teach42.com I also dropped PCs out of my office in favor of a Windows on Mac solution. A $1000 Mac Mini replaced a PC, DVD player, and home media server.
Using the Parallels DesktopÂ solution and a copy of XP Pro all the software that was previously on the Athlon 3500+ is now on a virutal environment on a Mac.
Noteable differences from previous emulation (VPC7), Speed! and getting Simply Accounting working. Simply accounting was a critical application for many small business users that did not work with the Virtual PC product on the PowerPC. Just to be safe I kept the the harddrive from my PC and put it an external USB case. Despite the fact the drive is formated NTFS the files are readable (and copyable) from OS X