I was wondering how cool it be if it is possible for a desktop computer to be capable to have Microsofts Windows 7 and Apple IOS snow leopard or higher.Just throwing this idea out there but it might have been done already. 
You can install GRUB to the master boot record and repartition the drive or add a new drive on which you install snow lepoard. If you are doing this on a Mac you could repartition and install GRUB to the MBR AFTER installing windows to the new partition.
You can install GRUB to the master boot record and repartition the drive or add a new drive on which you install snow lepoard. If you are doing this on a Mac you could repartition and install GRUB to the MBR AFTER installing windows to the new partition.