We test rode a Christiania in London last year. I believe a store around here (Green Commuter?) carries them, but I have no idea if they have them in stock.
Christiania is a trike, and both my husband and I thought that was a deal killer, especially with hills and turns. The guy at the shop said you do get used to it. Those bikes come with TONS of options, including lots of gearing options (our biggest fear is not having the proper gearing for Arlington hills). We did really like the bucket part.