go look for a older g4 mac mini. around $300-$400. you don't need an intel proc for itunes, nor do you need to run windows on it. if you do want to run a pc program, then you will need an intel proc mac mini. i used a duo core 1.66ghz mac mini as my personal computer and running the music server on it, with processing power to spare. you don't need a dedicated mac for your music server. i now use a new imac 24" screen running vmware for windows, mac applications, and itunes music server. i would recommend that you don't use a macbook or laptop for a machine that has to stay up 24 hrs a day. they get warm (hot) whereas the imac or mac mini run cool.
