I was just talking to the owner at my LBS yesterday and the mechanic said two things about this:
1. To really do this right, you should have a spoke force gage (to measure spoke tension) or a wheel that's been professionally trued to start. If your spokes start out tight to the proper values, you can do basic side-to-side trueing yourself.
2. This doesn't help you necessarily but... they said the will be offering some bicycle mechanics basic classes soon, and trueing would be part of the course. The only reason I mention this is you may want to check with your own LBS and see if they offer something similar.
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I stop for people / whose right of way I honor / but not for no one.
Originally Posted by
bragi 
"However, it's never a good idea to overgeneralize."