I would prefer to use e-junkie's shopping cart but I find that the orange paypal button at the lower right is a bit confusing. I think that the secure checkout button should be of the same style with the buttons on top of it.
That is actually the PayPal checkout button. Anyway, you can change the graphic anytime. The instructions for that are at http://www.e-junkie.com/ej/help.custom-cart.php
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