If you ever do come to Europe, definetely add Germany to your list. Lots of jazz fans here and lots of good clubs all over the country, often run by very dedicated people.
I live near a city called "Karlsruhe" which has several excellent clubs with both internationally renowned acts and up-and-coming bands. I know of several other clubs west and north of here which would be equally suitable.
If you ever do plan to come to Europe, make sure to contact any European members of this board way in advance. The clubs I know here in Germany (I also know quite a bit in Scandinavia where I lived for some years) book way early (6 months and more prior to the show).
Cheers!
Just thought of this: Whenever I'm in Copenhagen, I check out this guy: Kjeld Lauritsen (Oops. Stupid frameset link doesn't work. Select Denmark on the left and you're almost there). He's just damn good, often teams up with Bob Rockwell (sax) and just does a cool live show. Last time I saw him he still had a band called "The Organizers" which frequently plays the circuit (f.ex. the LaFontaine jazz club and different venues at the annual Copenhagen Jazz Festival).
Another image: Kjeld Lauritzen