FredK: Jake Shimabukuro is pretty outstanding. Thanks for that link, I hadn't seen it. Masterful arrangements and performance, both in technicality and in soul and nuance.
It reminds me of these guys, which I'm sure have already been mentioned somewhere in this thread if I bothered to search through all 650+ pages: Mnozil Brass. These guys are tons of fun and equally masterful. Mnozil Brass - Bohemian Rhapsody
Also in my five-disc changer at the moment: They Might Be Giants - Green. Ween - La Cucaracha. Soundgarden - Badmotorfinger. Supertramp - Breakfast In America. Outkast - The Love Below.
That last one in particular is a sonic delight. While there are a few weaker tracks, and a few skits that some people could do without, the album is largely a bowl full of funky ear candy. A good set of speakers will do justice to the album, and vice versa. I highly recommend it. Tons of fun, especially when you can hear all the details. I've owned it since it was released in 2003 and to this day it puts a smile on my face every time I listen to it.