I'm a MACuser, and haven't regret it. Cause i love the comp's. Anyways, Limewire is pretty good to use. It's like Napster but not that big, but it's getting bigger and bigger every day. And if u search enough forums and sites u'll find much much free downloadable sets. And a few years ago there was Macster, but due to the illegal stuff they removed it, or it's with payment now. Got no idea. But Mac has a few big mp3-search engines. ;)