NYC bikes sells a coaster brake road wheel. I don't know how good they are but the price is right.
Here's a link to their ebay sale
http://cgi.ebay.com/ws/eBayISAPI.dll...sPageName=WDVW
Gosh you might lose some l337ness but here is a nice, nice, 3 speed hub for cheap
http://cgi.ebay.com/ws/eBayISAPI.dll...sPageName=WDVW