not necessarily a tutorial.... but more of just a word of advice....
Nobody can teach you how to make beats except ur time, experience, and knowledge..... it's a big difference in "Copying" someones style and making "ORIGINAL" beats....
As far as sampling... anything works if you know how to use it..... the trick is is to find the ones that DON'T WORK..... and make them work... then u know you've done something different.... and u'll get more respect...