I recently replaced the stock wheelset (Alex ALX320 Comp) on my road bike. I went with Velocity A23 Rims on Ultegra Hubs. I picked them up on eBay for $260 including Ultegra skewers and shipping. They are 32 spoke and the rims are a bit wider than my old ones. I'm running 23mm Gatorskins on them and have been very pleased.