many of us would recommend a solution to solve the brake dust issue... via "rotex gold" kevlar dust-free brake pads. 90% less dust.
they are available thru:
http://brakeworld.com/catalog.asp?page_id=items&catid=2 for your srt. go with the rotex.
i now just use soap & water.
~ as for a cleaning product for brake dust... armor all makes a product called ... "wheel cleaner" in a gray bottle... works well imo.