Swinsian for the win
When I got my current Mac, before copying my music collection over I looked hard for a simple music player. Clementine, my previous favourite, had a bug which consumed battery. Swinsian is actually refreshingly simple. When I buy music I usually look for it on Amazon because of the autorip feature when buying CDs means I get some mp3s additionally.
Doesn't rip, though, use a separate program for that.