Hi. Just a suggestion I thought I'd throw in. Do you think it would be worth adding a location-group feature here, where users can, on their choice, allow Admins to group people together based on where they live (e.g. London, ...) and share that info with the same people? The idea is that if it so happens a few of us want to buy CDs, CD writers, etc together, we can place one big order together with only 1 delivery charge and the advantage of reduced bulk-purchase prices.

The only thing is that the people must be trustworthy, otherwise the poor guy that forks out the money on his credit card will be left with a huge pile of stuff which he can only partially use