I've got a track day booked on the 22nd at Anglsey so I've just ordered some uprated brake pads, I'm going to leave it on road tyres just for a comparison basis. I will have to buy some new rears though as the Falken fk453 on the rear currently are a comedy tyre!
As I'm only doing it on road tyres I've gone for Brembo sport HP2000 pads all round as I found them a great pad on the road, slightly better than the ferodo DS2500. Obviously I'll be changing to some better brake fluid too motul rbf600 probably.