ok ... so i started a thread about this a few weeks ago. i got one of the NYC Bikes/Strings and Spokes coaster brake wheels a few weeks ago and i have to say i love it. i wouldn't want to do a century with it or use it for anything too difficult but it rides really well and it was less than $60. granted, i was able to pick it up at the shop while in town seeing friends but the folks there are super cool and the extra for shipping shouldn't discourage you. if you have the time/talent to build a wheel on a Sturmy Archer or some equally cool hub you get off the bay, then go for it but the NYC bikes option isn't a bad one.

let us know how it works out.