http://cgi.ebay.com/SRAM-OMNIUM-FIXE...ts_Accessories
http://cgi.ebay.com/SRAM-S300-TRACK-...ts_Accessories
Most people will recommend these had a chance to test out the Omnium at my LBS, pretty damn good crank very stiff. S300 is a cheaper version of this never tested it, but I have heard it is a pretty good substitute. Both come with BB.