Hey guys thanks for your responses. I tried the easiest method first - Spraying them with a hose - drove around the block and the squeal was gone... Now its back, though. I guess this means its a dirty disc/pad issue then?
PS With regard to driving style, I usually don't hoon it too hard. Especially with braking; I usually just let momentum slow me down with some light braking. Should I be braking it like a Porsche too?!