Ok, first of all, I love my new MBP and I am totally converted... except for my work (.Net Development). I've installed Vista x64 in a boot camp partition and the performance when I boot up using Boot Camp is great, exactly what I was looking for. I also like the aspect of using Fusion in Unity Mode. I've got Fusion 2.0 beta 2 installed and I like to be able to utilize Unity mode as much as possible but it seems as if it can be a lot slower at times. Boot up can take a while and sometimes freezes on me. I know that this is in beta and I should expect some of this, but I hear others talking about how the performance in Unity is great, but I just think it is ok. Is it because I am using the Boot Camp partition in Fusion that is making a difference? I'd hate to convert to a VHD instead because I like the ability to be able to boot up in Boot Camp and use Vista natively. I was just curious if anybody else has tried both ways and noticed the VHD to be faster.