The resaon I'm asking this is two part. 1. I'm currently running Logic 5.5.1 on PC and will soon be moving to Mac to upgrade to the latest version of logic but I want to buy a UAD-1 now to use on current projects. 2. As I have to buy the UAD-1(pci) to work in my current system, will it work also on the newest Macs? Or do you have to purchase the UAD-1e(pci express) for the new Macs. This will obviously affect whether I purchase now or not... Thanks for any guidance. !