Now, I usually don't listen to hip hop or rap, but I found one or two tracks which are actually quite nice — and will feed them to you now ;-)
The first one is DeutscheUnschuld's remix of J.Lang's "Coast to Coast". Listen to the original piece, too, you'll be impressed at how different the remix sounds.
Oh, and visit ccmixter.org, the site is really great. Artists have a plethora of Creative Commons licensed music and samples they can choose from for remixing or for their own songs — and the results are really stunning. Creative Commons at it's best!
Song: DeutscheUnschuld - Coast to Coast (Remix) (3:50 min, 5.3 MB)
License: CC-sampling-plus 1.0