My partner and I found a Twenty in our LBS yesterday...for $325
It was complete and original with a generator light, but seriously, $325?! It wasn't in terrible shape, but not even close to mint, and they had done minimal work on it. There was no way I was gonna pay that much.
Then we went on ebay and found one that appears to be in better condition for less than half the LBS price. The bike has the original fenders, rack, decals, etc. We're excited to play around with it once it arrives. The first thing we'll do is add Schwalbe Marathons, Kool-Stop brake pads, and a nice new chain.
Thanks for all the advice and responses!