In case anyone is interested in a quick speed comparison between Parallels and Fusion on the nMP. Here goes:- I have mainly used VM Fusion for running Windows/SQL Server and an in-house data intensive application that we developed. Parts of the application processes large amounts of SQL data which pushes cpu, memory and disk IO. I have tested this on both Parallels and Fusion. Sadly, as a Fusion user I have found Parallels runs 25% faster. Both virtual PCs are identical with the same data. I wasn't expecting to see such a difference when running a real world application. The benchmarks I have seen on the web have measured Windows startup and shutdown times and they are both fairly similar. Just thought it worth reporting.