Full mettalic pads will eat up stock rotors. There are some really good kevlar pads that make less brake dust and stop really well. The best bang for the buck is probably carbon mettalic pads if you don't mind a bunch of dark brake dust.
metallic SHOES? i understand that they generate a lot more heat than non-metallic shoes. i thought that i had read you needed different drums and hardware to run metallic shoes, can't think of where now. i doubt if they'd be worth the hassle.