I am also looking for a new cart. We have 1200+ static html pages, over 5000 products and an antiquated cart. The cart code is proprietary and the owner will not upgrade to todays needs nor will he let us make the necessary changes ourselves. The current cart is pearl/cgi. Without completely rewriting the site, I think an open source cart is the only way for us to go. My tech says if I find one that suits to say 75%, he will fix the rest. I seem to only find carts that are database driven. Any reccomendations?