How to paint your calipers

First of all the obvious, use safety precautions.  Jack and support your vehicle accordingly (jack stands).  Clean the calipers off with brake cleaner.  You can sand blast them for the best results, or you can sand them.  That is a little more complicated and time consuming.  Prime the caliper with self etching primer and then get your favorite color of spray paint and spray away.  Cover the rotors, pads, and sliders for the calipers.  Clear coat them with wheel clear coat so they are more resistant to chemicals and brake dust.

Dupli-color makes a very good kit that includes special paint that will hold up to the high temps that calipers see.

With most Calipers KITs you don't have to  prime or clear coat and they will hold up to heat.

Thats some good info. Fellow moderators, I beleive this is pin-up material. It will now be at the top of the Detailing forum! 

i have a better idea,
        how about powdercoating them, it withstands high temps and looks as good if not better than a high gloss paint, just a thought,
                           thanks, james
                                    comptonspowdercoating@gmail.com

Probably a good idea but not sure most of us would want to disassemble four calipers and do without our truck for about a week.