Right now I am attempting to install OS X Snow Leopard to my Intel Core i5 Toshiba laptop. I don't fear making mistakes because I made a system backup to an external drive and made a system repair disc as well. So far, I've resized my Windows partition and left 85GB for OS X in a separate HFS+ partition using Paragon Partition Manager 10. Wish me luck! If it goes right, I should be able to dual boot!