Hey, I read this post, then that tutorial, and I decided to write my own tutorial. It takes a different angle, first introducing the basics of sampling in Logic, then recreating the functionality offered by typical samplers, within Logic, then talks a bit about how to get more out of ultrabeat and exs24, including how I personally use them. I would copy it, but the formatting wouldn't transfer, etc.:
"Sampling in Logic 9"
http://blog.robbiesullivan.com/?p=68
Email me with questions--I will need to revise it but need people who are confused by it to tell me how! robbie@robbiesullivan.com