Here's a link to Michael Fletcher's moss growing handbook (warning! large PDF file), he includes a section on sphagnums. Lots of great info on cultivating many other types of mosses, too. Good luck!
Thank you for your comment gnathaniel. I pulled the PDF file you posted is very interesting. I did not know sphagnum moss came in other colors besides bright green or dried gold brown! If you stick around long enough on this part of the board you will quickly see and learn all about Neos.