http://www.humbuckermusic.com/acguitrectec.html

Ok read this for the how to only don't worry about all the high end mics  he's talking about .  I mic mine different  ways.  Usually I just  use a cheap large condenser but if I want to really get a good sound I use a large condenser with a  small diaphragm uni directional mic.  You can get good recordings with just a  shure sm57 or 58 . I also have a cheap shure prologic uni directional  small dia.  condenser mic  that gets a pretty good recording  too.

I just posted this for the technique only,  it shows you pretty much how to record the correct way (whatever that is).