Just bought StopTech SportStop slotted rotors for my X5 3.0D from Zeckhausen for $418 + $61 shipping.
They are board sponsors I believe.
StopTech Stainless Steel Brake Lines and Axxis Ultimate Pads from Rotorworks on eBay for $247 + $22 shipping.
You'll need to replace the activated brake sensors as well.
Seen them for about $12 each.