Here is the relatively simple bass
tab to Tripping Daisy's I Got a Girl:
When it starts on the verse, you play:
A——————3—————————— 
E—3—————————5————4 with sufficient pauses for the 
guitar to be able to pick over a 5th root chord.
Then, as a fill the second time through, play:
A—3—4—5—2
E—————————3(this G is the first in the next time through)
Then, third time through:
A——————3—————————————
E—3—————————5———4—5—4
The timing is not exactly right, but listen to the song.
For the chorus, play:
A—————————3—3—————————3—3
E—3—3—3—3—————5—5—5—5————
The pre—bridge(that's the best way of describing it):
A——————3—————————————
E—3—————————5—5—5—4—4
Then the bridge itself:
A—2—2—2—2—2—5—5——0—0—0—0—0——3—3
That's it.  Pretty simple, but when you put it with 
the guitar, it sounds really grrrreat.  Mike Farmer