If you like Jagged... find the acoustic version she put out. It's not just her and an acoustic, it's more a "softer" version, if you will, but it's great. I love Jagged, I love the song "Thank U", and I love "Uninvited", but there's a pretty big drop off for me after that.
Though if there's a tour with her and Garbage (I'll be at the beer stand for Liz Phair) I'd go see that.