Tim from cargocycles was due to show his Dutch cargo bike to Pete at the shop on Friday, but due to a combination of factors he was late and Pete was out, so I got the brief demo. It was quite fun to ride and is rated to carry 80kg of cargo in the front tub.  I don't think it'll be quite suitable for my freighting stuff to the Blackburn velo from home, but it might be a good shopping bike, given that the local stupormarket is only 1500m or so from home.  Worth thinking about.... If you live close to shops and somewhere reasonably flat and can't see a way to cart the groceries without using petrol (oil hit $139 USD/barrel overnight, in 1998 it was $10 USD/barrel) this might be part of your solution.