I've been mixing rap/hip-hop tracks for several years now, and the feedback has been very positive.
I have lots of experience with professional grade plugins for EQ, compression, reverb/spatial effects, and various saturation effects - all of the things necessary to properly blend vocals into a beat, sometimes with sprinkles on top.
I also have experience with the mastering process - multiband comp & leveling, stereo field adjustments, and a final EQ and limiter, to bring the loudness up to standard.
Artists include: Illegitimate Records, Ras the Emcee, Demetri J... and I'm DJ Phazer!
I typically charge $20 for mixing + $10 for a proper master... but I'll do this first one on the low! ;)