Hi everyone!!! I have a question about building a Mac Pro out of replacement parts. I am thinking of buildimg one of the 5,1 models. I have research in these forums and elsewhere about building one. I've seen people have been successful in building them. The only thing a have not found for my build is a restoration DVD or the install/restore DVD for that particular model. I would like to know where or how to acquire them from or if I could just purchase a retail version of the os and install it like you would on a PC. The reason I ask is that I'm new to the Mac line and this would be my first Mac. Any suggestions or advice would really be appreciated. Thanks !!!