Give me a break. If you are worried about warped rotors, the rotor is the most important part. It was shown a long time ago, that the stock rotor is very thin when compared to after market rotors, or even OEM store bought rotors. That would be a culprit as to why they warped so easily.
Why would you want to pay $70 for OEM pads? I've used nothing but aftermarket pads, and only the Raybestos pads had a lot of dust. None of them gave me problems with squeeking, and none of them warped my slotted rotors. The Performance Friction pads only squeeked when cold in the morning, but were silent once warmed up. Why would slotted rotors crack if gotten too hot? They are designed to maximize cooling. I've only heard of cross drilled rotors having cracking problems, but I haven't had any problems with my slotted rotors. And they came cadmium coated in any color you want, so going OEM for appearance sake is silly, as any good aftermarket rotor will look much better than the stock rotors. And I don't know about you, but my Slotted rotors with aftermarket pads, have given me far better life than the OEM pads that came with the car. Its been almost 35k miles so far, and my pads are still fine. The OEM pads only lasted me about 27k miles on the stock rotor, and the stock rotors were shot at the first brake job, so I don't know why you think OEM rotors/pads are so good, or why slotted rotors chew up pads. Besides, most places will give you lifetime warranty for regular pads, so you basically have free pads for life. Besides, if you're that worried about non GM stuff, ACDelco makes PowerStop slotted rotors.
Personally I think OEM rotors and pads are junk. With my stock rotor and pads, I had a terrible wet braking problem, when driving in the rain. After 10 minutes, you hit the brakes, and zero stopping power for a brief instant. This was a well documented problem. When I switched to slotted rotors, and Performance Friction pads, this problem disappeared.