Crucible has such:

store.thecrucible.org/product_info.php

Not cheap.

Techshop.ws doesn't offer EL wire classes yet, but they should....

- Bart

Cool Neon in Oakland is a good place to get EL wire stuff. They alway throw a couple of "soldering parties" at their office, in the weeks prior to Burning Man (i.e. coming up real soon) - check their website for more info. The soldering parties are a good place to learn by seeing and doing, and also to hang out with other people who are doing similar projects.

Their site has a good basic intro on how to do it, and they'll even answer questions over the phone etc. see www.coolneon.com/soldering.html

www.youtube.com/watch

This is how I learned....along with trial and error.
It's great for the basics.

I would be happy to help you with some ideas and techniques for using el wire to decorate costumes. Just send me an e-mail. I can embroider using angel wire from cool neon. You can make any shape you want as long as it doesn't have corners sharper than the curve you can make around a pencil. You can order pre sodered lengths of EL wire from cool neon. All you need to do is attach the wire to your costume. Tail wire has a tab that can be stapled or glued. I prefer to use angel wire as it is small diameter, but it has to be covered and used inside a garment.

I would be happy to met some people at the burn to show them how I make my soder joints.