Starting from a single mac osx installation…
- Install Windows with Boot Camp Assistant
- Open the disk utility and shrink the mac osx partition leaving the amount of space you desire for your new partition.
- Create the new partition using disk utility (I used it via install disk in snow leopard).
I formatted my new partition FAT32 so that I could fully utilize it from my mac side or my windows side. I also run Parallels in mac osx from my bootcamp partition. One problem: running windows in parallels causes problems in reading partitions. My next post will address this.