A bunch of us forum members have purchased very nice aftermarket wheels from
www.wheeldynamics.com.
I got the 18 inch Carrera lights and they are really nice. I had them shod with Michelin PS2's and they were $2200 shipped to Houston.
Of course, I also put on some H&R 7mm spacers on the back because the ebrake cable was just a tad too close to the rim for my comfort level.