NJS wheels:
http://fixedgear.americancyclery.com/Details/Wheels/1
not that you need to pay that much. all you need to know is that NJS spec calls for 36-hole tubular wheels. Suzue and Shimano NJS hubs are easy to find. 36-hole Araya gold label rims are kinda rare outside of Japan these days, tho... but you might get lucky...