The Baratza Preciso is looking to be a very good grinder for all brewing methods including espresso. Here is what Mark Prince has to say about it.
http://www.coffeegeek.com/proreviews...reciso/details
I have the Baratza Vario that is a dedicated espresso grinder with the Virtuoso doing all other brew grinds and am very satisfied. What I like about what is said about the Preciso is that it does the courser grinds with less fines then the Vario can do.