I was using Bootcamp on my MacBook Pro but I am trying out Parallels on my new MBA to see if that is better for me than Bootcamp. For you Parallel users, what are some of the features you recommend I check out during my trial period. It looks like I would have better control of the spacing with Parallels. Also, it says that it comes with a virus software if I decide to buy it. Is this something for the vm with windows or both the vm and the Mac OS? Any suggestions are greatly appreciated.