Yep I second that, however it's taken Auctiva quite a while to build up the functionality that it already has. I've no idea how easy it would be to replicate all that.
I would also like eCrater to offer the option of selling stuff in £'s rather than $'s.
Good luck with your campaign. I'm not sure they'll dump the US, but I would like it if they gave us a bit more attention over here.