I've had lots of luck with Porterfield R4S pads. They work slightly better than stock when cold and much better once they've warmed up (usually only after a few stops). They're a little pricey ($99 F / $70 R), but pretty darn good.

I do track days and I consider them a must for that kind of abuse. However, I did notice that once the front pads were worn down to about 20%, they nearly disintegrated at track temperatures. I guess that when the friction material wore away the backing plate must have really heated up and it just cooked them. But I still made it home from the track and drove on them for a few months before finally replacing them.

They do dust more than stock pads but it comes right off. Oh, and also they do not have screamers so you need to remember to check them when they're getting low. I put about 15k miles and 6 track days on my fronts before replacing them, the rears are still going strong at 20k, 7 track days (about 30% left).

Anyway, my $0.02.