DO NOT GET DARK COLORS!!! Dark red/green/blue/whatever just makes them look dirty... get a nice bright color (I got red) and make sure you grease/sand calipers and dry them before you coat them... give them several good coats, but be sure to mask off the rotor edges and the brake lines... also make sure dust is kept to a minimum around the painting area and let them dry for several hours before driving on it... let us know how they came out... and yes, special caliper paint can be found at Auto Zone, Napa, or PepBoys... or just about any other car place
