Thanks to everyone for your recommendations. I decided to get a custom build from Ergott wheels. After annoying Eric a lot with my indecisiveness, we agreed to a build with DA 9000 rear hub (I got a really great price on these and a nice compromise since I wanted a c24) and T11 front hubs. The main reason for different hubs is that in my weight a 20/24 spoke count would be sufficient. However, DA does not have a 20 hole front hub, and I didn't want to go down to 18 holes since the 20/24 combination is working well on my present wheels. I guess the T11 front hub is also is also lighter, but I don't think that matters much.

Ergott/Eric's going to use Ryde Pulse Sprint rims and Sapim Race/Laser spokes. The price of the build is the same as November Nimbus Ti with shipping, and the weight is probably around 1400g.

People may find the different front and rear hubs distasteful, but it doesn't bother me as much.