hey Clyent,
I have developed my own PHP shopping cart software which you can try out on
www.organic-fair-trade.com.
I am working to get this software to an "out of the box" state much like the guys who developed CS-Cart. Perhaps we can help each other out.
For you I will offer my shopping cart at a discounted rate. I can help you install it and will even develop custom functionalities for you if you need them. We will need to come to some sort of agreement, of course. My thinking is that any development or changes you need are likely to be desired by future clients, so I consider this fee to be supplemented in the sense that you would be helping me to "market test" my product.
Like CS cart I would offer a money back guarantee. Actually, I will say payment upon satisfaction. Just
contact me on my website,
www.informationarchitech.com if you are interested.
thanks,
aaron