So, I'm expecting a new mac mini (with super drive) from the FedEx guy any hour now with snow leopard on it. I want it to run time machine backups for my macbook pro that runs leopard. Is that an issue? The two versions of OSX? By the way of more information, I'm also going to use the mini as a centralized music and video source -- it'll hook up to my stereo system and my projector.