Try the Akebono Euro Ultra Premium pads...I put them on my 2001 and my 2006 4.4is....no dust and great performance. The only difference was a softer braking pattern to the OEM gripping.

I also just put them (part # EUR919) on the rear of my 2008 model....the fronts as I am told by the US Akebono plant is due out in late August, at which time I will replace the fronts.

A Place for Brakes: http://www.placeforbrakes.com/product.php?pk=1682&cmk=31474&car_year=2007&avail= 1
ebay: http://cgi.ebay.com/ebaymotors/BMW-X5-X-5-Brake-Pads-Pad-Kit-Ceramic-Akebono-Euro_W0QQcmdZViewItemQQ_trksidZp3286Q2em20Q2el1116 QQitemZ350077283246

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AceJam
2008 X5 4.8i
Alpine White; Tan Nevada Leather
Sport Pkg, 20" Wheels
Cold Weather Pkg
Active Ventilated Seat Pkg
Premium Pkg
Premium Sound Pkg
Technology Pkg
Rear Entertainment Pkg
Towing Package
Aero Kit