Any link to a Point-of-Sale script one can actually download?
Hi check out this. CPos is a web-based point of sale software that can help small businesses keep track of customers, inventory, sales and products and generate reports that are based on company sales. The system uses cash, check, or account numbers for sales.
but is there any free available
Very comprehensive script that will connect to a number of online payment gateways like Paypal. Warning. Its complicated and has a steep learning curve for customizing.