Which do you prefer and why? I am going to be running one on the imac I am about to buy. I don't wanna fool with heavy burning on my MacBook, but I will get down to it on iMac. I have pretty much given up on finding a good decryption program for mac.. many headaches later I have decided to run something so I can use my windows programs to back up my dvd's. When I put windows on mac, in theory I open it up to the same crap windows has viruses/spy-adware etc ... ughhhh What do you use to keep your mac safe and sound when running windows? Thanks for any advice you can offer!