I'm a computer novice so forgive me if this is a naive question. If I understand correctly, Parallels can be installed on a MacBook that either does or does not have a Bootcamp partition. So, I can install Parallels directly onto my Mac OS without any Bootcamp partition, or I can first partition my MacBook hard drive using Bootcamp, install Windows 7 on one partition, and then install Parallels on the Mac OS partition and use the Windows Bootcamp partition as my virtual hard drive? Is my understanding correct? If this is so, what are the advantages and disadvantages of using the former configuration (no Bootcamp partition) versus the latter configuration (Bootcamp partition)? If I am going to be using software that utilizes a lot of memory, is one configuration preferred over the other? Thanks for your assistance!