tight where it break down around 1:20 -- I think if you layer some breaks with a lot of cymbal action on top to brighten it would add some depth -- (be sure to make them compliment the rhythm you already have set with the main break)
you could also do a switch every once and awhile with the break, this tune sounds like one of those kinda tracks, ya know?
the vocal sample is best when you hear it the second time and he says "put that in your dojo"