New to Mac universe. I have hundreds of Logic music files in PC format (Logic v4 & 5). I need to connect to my four channel AD/DA Firewire device and Midi synths, (record up to four vocal channels simultaneously) with Logic. First, would anyone suggest a good Mac (mini? Air? Book Pro? Pro?) to start with. Second, If I get the new hardware and Logic 9 will it read my old PC files? If not, I will have to start all over.