Turner has StopTech pads for the front calipers:
http://www.turnermotorsport.com/p-20...-f32-435i.aspx
These are more cost effective than the Pagids, but maybe they offer nothing over the stock pads. I find the stock pads behave similarly to one of these street pads, as the pedal feel on the street offers less initial bite than what I'm used to on my e92 with the stock m-sport brakes.