some tips

1. do not sample drums from existing hip hop cd's. Those are going to give you noise, and are already compressed typically so the character is dry. It would be like fixing three week old chicken nuggets to eat.

2. The clip at the end is fixed by cutting a tiny bit off of the end of the loop where it clipped. Also turn down your gain on the input they are coming in too loud.

3. Once you get your sample hit in there, copy and paste it over and over again onto onto itself to thicken it up.

4. go but a high quality set of samples made to be sampled. you spent this much on equipment. it would be like buying a nice stove and great seasonings and pans and then cooking with crappy meat. Bigfish audio has some huge sample kits that are vouched for for $30 - $40 bucks for download delivery in wave format which is pretty much non lossy.

once you have sampled the drums in, eq them, add velocity and effects - DO NOT COMPRESS THEM - you are killing the natural character of them if you do that.