need tips on painting engine

I've been researching this topic myself. You will get many opinions on what type or brand of paint to use. It will also depend on whether you are doing a restoration correct paint job or just painting an engine.
I will be doing a restoration correct painting of my engine after it comes back from the dyno. Totally Auto has some good prep info on their site:

http://www.totallyautoinc.com/paint/painting_tips.html

I'm sure that others will add their own personal experience on this topic soon.