Ive been using "mals" free shopping cart system to market my single ebook through the US/UK Europe and Australia. I'll shortly have a couple more books ready and would be grateful for any ideas of different shopping carts that could give me the option cross-promoting the different books (ideally via a check-box for additional purchase) at point of purchase. Mals only offers a single product option and no ability to include multiple websites in the future on one account.
I know 1shoppingcart does this but I've heard its for US only. Is this true and does anyone have any other ideas?