I've got a couple pairs of ProGrid 5's as well as a pair of Fastwitch 5's up for sale. There's also some Nike gear and Saucony gear you should check out. Enjoy!
http://www.tracktalk.net/showpost.php?p=388793&postcount=4373
http://www.ebay.com/sch/run4life11888/m.html?_ipg=50&_sop=10&_rdc=1