Apologies if anyone has posted this before - I didn't see it mentioned anywhere. Interesting article over at MacTech - they did a massive benchmarking head to head between Parallels and Fusion to see which one performed better in XP, Vista and on a variety of Mac hardware. Over 2,500 tests in total. Anyway - the good news for the Parallels community is that Parallels pretty much nailed Fusion in most of the categories. Test results and report are here: http://www.mactech.com/articles/mactech/Vol.25/25.04/VMBenchmarks/index.html