One of my favorites in that style is
Tank. Might be a bit too busy, depending on which parts you use, and how fast you want it, but should make for pretty good routine music for somebody that can pull off this style.
If you want something a bit less busy, you could try
Get on the Bus, or perhaps
Wake Up (Toe Jammin') (a perhaps a bit more electric than what you're looking for, but still definitely jazzy in flavor). One more you might try (though it's probably too laid back for use as routine music) is
Super Buck Jazz.