WOULD YOU PPL STOP THIS!!!! im so tired of writing out the same responce... Jesus Christ take a physics class...
Ok... surface area has nothing to do with friction (braking)... the formula for friction is

... thats the coeffecent of friction times the force applied... as you can see NO SURFACE AREA!!!!
READ THIS LINK!!!
NOW!!!... ways to improve braking...
1. Improve force... this can be done by pressing harder on the pedal... Braided brake lines are a good way to do this too...
2. Buy better pads...
3. Move your pads further away from the axis of rotations... such as in a Big Brake Kit... this will allow the friction to apply a greater moment (which is force time distance) to the wheel allowing it to stop faster...
now as for drilled and slotted... im prolly just gonna go with slotted since drilled do have a rep for cracking... (truthfully i havent decided)... but i am definately going to go with a disk that will allow gasses and heat to esacpe from under my pad... Im really not into floating rotors...
-me