Thinking of buying a 2012 El Mariachi frame. Two questions:

1) I'm currently riding a Karate Monkey frame. I've read threads comparing the KM and the El Mar, but can anyone who has ridden both give a specific review of how the two frames compare in terms of handling on trails?

2) I have a Surly steel fork, but I've heard the Salsa steel fork is a nicer ride. Besides searching the classifieds, where can I buy one for the El Mar?