Nice list, clarity!
Rufus Wainwright -- I like him, but don't listen to his music a lot. His Poses cd always makes me envision a musical.
Loudon Wainwright -- Haven't listened to much of him, so I can't really comment.
Teddy Thompson -- Haven't listened to anything or anything by
Richard Thompson. What do they sound like? I always need more music!!
The Hives -- I think they're fun, but not a great musical force or anything. The thing where they made up the story about how they got together is hilarious. Definitely entertaining, and I've heard they put on a great live show. Thanks to MTV2 screwing up the $2 Bill ticket-getting process, I may never know. Not that I'm bitter at all.
The White Stripes -- Really fun as well, and another band I want to see live. The songs are cute, and Meg White spells Megan the correct way.
Also, I love the whole marriage license controversy. I've heard, however, that Jack White actually has a great voice (as opposed to the way he usually sings), and sometimes it slips through in concert.
Jude -- Don't know them/him. More info, please.
Pete Yorn -- I completely agree with deep on this one!
Have you listened to Jack Johnson at all? Given what you've listed, you might like him.