RediCart
RediCart is a powerful Perl-based shopping cart system designed to enable you to accept credit card, check, and EFT payments online in real-time. It is designed to work with iTransact's payment acceptance services (RediCharge, RediCheck, and RediEFT), but you can modify it to work elsewhere. Features include: No per-transaction or usage fees, Easy installation, Header and Footer HTML pages for quick set-up, Uses customer's IP address to track cart contents, Advanced shipping charge options, Advanced tax options, Fully documented step-by-step installation instructions, and Customer order completion can be handled on iTransact's secure (SSL) server (for those merchants who register with iTransact).