So I got my Euro-Spec M5 bumper this week (sweet!)

I need to paint it. Anybody got recommendations? My hood is also a little chipped, so I'm wondering if I should just paint that too (or even get a lightweight one? haven't seen any excpet fast&furious styles..). Also, do you get a "discount" while painting several parts at once? Or do they charge you for single pieces anyway? I'm thinking if I should save up parts for painting.