So, I want to set up some kind of computer just to run iTunes, kind of an Airplay server if you will. I'm trying to figure out which hardware to use, and I'm not sure what if any drawbacks I will see from running on older hardware. I will be serving to an Apple TV and a couple of Airport Express's, and controlling from a couple of iPhones and an iPad 2. I am considering three different scenarios: Using an old laptop I have lying aroung (WinXP, 2 gig ram, 1.2 gHz Celeron, 80 gig HDD) together with my NAS server. Price: 0$ Buying an old Powermac of some sort, throwing in a SATA controller and a couple of hard drives, and using this for running iTunes and replacing the NAS (?) Price: a few hundred bucks. Buying an intel Mac Mini (new or used), in this case I would probably use the NAS for backup, or a USB drive for my Airport Extreme. Given that I will just be using this setup for iTunes, are there any limitations to using a Windows or PowerPC based setup, as compared to a Lion driven Mac Mini? Thanks.