Everything is a tradeoff is design and manufacturing. The three things you are looking for are answered by three different products. You need to decide what you want, which balance of performance/cost/etc.
1) The lowest noise solution is OEM, hands down. That is largely why BMW specs those pads; they don't get warranty claims for noise, and they get good performance. Dust is the trade off. If I was buying rotors, I would buy OEM, Centric, or another quality jobber/will-fit brand. Brembo doesn't make the rotors in the factory size, they buy them from China and Mexico like everybody else. Get ones that are coated so they don't rust.
2) A good low dust pad solution is Axxis Deluxe (various trading names, PBR/Repco, Axxis, etc). Noise is not quite as good as OEM, probably 80-90% of the OEM quietness. Mine were acceptable, no squealing, but the first application after a week parked resulted in noise, which went away after one or two applications. Performance is either equal to OEM, or very close, depending on your perception. I would put them in again, because I get tired of cleaning wheels, the performance and pedal feel was equal IMO, and the minor noise on first application didn't bother me.
3) More performance means bigger rotors, or more clamping power (bigger calipers), essentially. Both the above pads (OEM and Axxis) have good performance within the limitations of the OEM caliper design. No sense going to Brembo or other vendors for more performance, unless you increase rotor diameter and/or cooling capacity, and you move to larger calipers, often with more pistons and floating disks. A rotor is a rotor, for performance, unless you drill it and compromise the structural integrity, then it is less of a rotor. Drilled and slotted doesn't increase the performance, but to many they look cool.
If you just want the high performance look, you can paint the OEM calipers or do a cosmetic upgrade with slotted/drilled rotors. Whichever rotors you go with, Axxis pads work well. Call Zeckhausen, who is a site sponsor.
http://www.zeckhausen.com/
If you haven't already seen them, check the articles on the home page for the how-to guides.