I am running a pair of shimano LX hubs laced to Mavic A719 rims (36 spoke) that I bought from performance bike. They are good wheels that were around $200 on sale about a year ago. My next set of wheels will be custom built by Peter White. I am thinking about Phil Wood hubs and Mavic A719 rims. I am going to go with 40 in the rear, and 36 up front. Some may say that a 40 spoke wheel is overkill and the rotational weight is greater..blah, blah blah: the extra 4 spokes weigh no more than a couple of bites of a Power Bar; the addtional strenght is well worth it.
This is a good set of wheels that are being sold on Ebay.
http://cgi.ebay.com/New-Hand-Built-X...QQcmdZViewItem