Heres really nice DJ Premier article.
"I like the difficulties of the older equipment. I don't sample with the MPC60, I just use it to trigger drums. Instead I sample in the S950 and trigger them from the MPC — everything, also my keyboards, is MIDI'd to the MPC. I can only sample 60 seconds of audio in the 950, and that also has to include kick and snare and other drum sounds, so that limits the sample time I have. This forces me to be creative with samples. If I find a sample that's longer than 60 seconds that I want to loop, the first thing I'm going to want to do is find a way to make it funky with the limited sample time I have available. I'll mentally create the idea in my mind, because the mind makes the machine do what it does. Any machine is useless without my mind making it follow my command. That's how you recognise creativity versus someone who is OK.
"When my ear catches something on a record that I like, I'll send a portion of that record from my Technics record player to the S950. Once the sample is in the 950, I truncate the parts I don't want, program what I do have, and assign it to one of the pads on the MPC. I'll experiment to see if it makes me feel good and if it starts to sound like something I would buy. If it doesn't sound like something I would buy, it's not ready to go. I have to like it — I don't care what anybody else thinks.
http://www.soundonsound.com/sos/jul07/a ... remier.htm