There are a number of threads dealing with upgrading brakes but there is little or no discussions on brake pads. I have used KPF carbon kevlar pads which I found to be excellent pads and now I've been using EBC green pads for the last year or so. I find the EBC easier on the rotor and they maintain their heat better. Either of these pads greatly improve the stopping rate of the car and I also use the S10 non power wheel cylinders in the rear. The pads aren't cheap as I was paying about $85 for the KFP and the EBC's run me 108.00 but in view of what it cost to change to a 12" rotor it's cost efficient. Also there is a minimal change, if any, of stopping when upgrading to a 12" rotor for braking. The tire are another variable when it comes to braking. Where the benefits of a 12" rotor really come into play is when your braking hard and frequently as in a circle track race as the extra surface dissipates the heat better.
http://www.truechoice.com/products.asp?dept=1110
http://www.ebcbrakes.com/automotive/gre ... ndex.shtml
http://www.truechoice.com/products.asp?dept=1110
http://www.ebcbrakes.com/automotive/gre ... ndex.shtml