For hawk pads, buy them direct from the US, about half price to your door than what you cen get them here for. eg, in Aust paying $140-160 for a set of HB100 size pads for my Wilwoods, from the US, $80 at my door.
The best way to get the info you need is the following:
1. Jump onto Hawk's web site and download their catalogue, big at about 100MB from memory.
2. Once you have your pad shape, email the the tech help on the website, I have the email address of the person to speak to but would rather not put it on a public forum, and he will recommend the best compound for your application, for most sprints and road use, Hawk Blue, 9012 compound would be the go.
3. Jump onto
www.hawkpadsdirect.com and order your pads. Be careful of the shipping, depending on how many you want to get at once it pays to play with the order number to see how shipping is affected, I saved a bundle doing this and made two seperate orders. The pads took about a month to arrive, but for the rice a bit of pre planning is well worth it.
4. Fit to your car, and have what is in my opinion the best value brake pads money can buy.
Just be careful as some compounds can be harsh on rotors, the compound I was using, DTC60, would chew through standard rotors pretty quick, ie one set of rotors for 2-3 sets of pads, I would however get a good half season out of a set of pads and still have about 3mm of the origibal 6mm left when swapping them out.
The hawk Blue 9012 compound is noisy and does like to be warmed up in my experience, so not really recommended for the road with the car I had them in. On the track, brilliant. And with the compound I enede up using again the same needed to be warm to get the best out of them and if they squealed like a stuck pig on the cool down lap coming into the pits then I knew I had been working them pretty hard.
Matt