I would not recommend you to learn Swiss German only or learn Swiss German first. You may want to learn standard German first which is "Hochdeutsch". If you only learn to speak Swiss German then you won't be able to write or read German text.

There are some resources out there, Pimsleur got something too: http://www.pimsleur.com/learn-swiss-german However, the written language is mostly hochdeutsch and you need to know that too.