After trying out all of the Linux audio players I could find, I finally settled on Listen. It doesn't look like it's updated very frequently, judging from its web site, but I love the interface. With a few minor UI updates, it would be perfect!
There's just one problem...its Shoutcast tab under the "Webradio" category doesn't seem to work. Nothing shows up. I tried searching for an older post where this problem may have been discussed, but "listen" brings up quite a few things that don't have to do with the audio player. Any ideas?