Nice find on the Twentys, Pixel! It seems that the UK folks have a much more ready (and reasonably-priced) supply of Twentys than over here in the states.... I even saw one listed on the Boston CL for $350.
In that vein, here's a Twenty in NYC for $100 asking price. Not an amazing deal, but if you were hankering after one and tired of seeing people ask $200+ for it (because it's vintage, don't-you-know), this may do.
http://newyork.craigslist.org/brk/bik/376940466.html