CA stands for cyanoacrylate. It's instant glue.

I like Zap CA because of the bottles. They don't clog... at least not the way I use them.
http://www.zapglue.com/zapca.html

I've used others, i.e. Northeast Hobby Products (or something like that) that have screw on tops made from a type of plastic that bonds to the CA. The top always ends up splitting before I empty the bottle. Perhaps it's just a matter of technique.

It seems that just about every company that makes model products slaps their own label on bottles of CA. So there are many sources.

Acetone is a good solvent for CA. You can get it at any paint store, or Home Depot.

CA tips are useful for applying thin CA one drop of a time. They're also useful if you have to apply medium ca and can't quite reach the joint. I found Sig CA tips are great. A single CA tip has served me through 2 model builds and is still in perfect condition in my acetone jar. I managed to get it clogged once, but a soak in fresh acetone cleared it.

Cheap CA tips look like this: http://www2.towerhobbies.com/cgi-bin...?&I=LXK295&P=7
Sig's are longer, and more durable. They don't have the appearance of something disposable. I couldn't find a picture.

I where dispoable vinyl gloves when I use it. The CA won't stick. Well... if you get large amounts on the glove it will stick. Latex gloves, on the other hand, are no good. CA sticks quite well to latex.