All it took was hearing one song by her the radio last year for me to shell out money for the overpriced Rhino handmades. Here's a few mp3s of her singing live, if you're curious. The full band studio recording of this song is my favorite (you'll have to settle for her solo in the link). The Rhino handmades are sold out, but if you're curious to hear , they still have sound clips up in quicktime.
They weren't all peaceful easy feelings. Her biography is hard to piece together (details such as where exactly she was when she died of a heroin overdose are unclear), but while she was alive, 70's era singer-songwriter Judee Sill made some amazing music. NPR reviewed a recent release of her music and I was reminded of just how great it sounds.