Replying to Music Mixing - Acapellas and Instrumentals

So I just got a mac a few weeks ago and I'm on the DJ program. Basically im looking to mix some killer beats with some good rapping.

So in here if you guys could post some good beats, and some good rap freestyling it would help alot.

I have some biggie and tupac fo accapellas and some old school dre for beats, its not bad, but I need some stuff to download.

Thanks.