I'm still waiting for the day when there is a decent payment processor out there. The sandbox environment for Paypal is horribly complicated & Google Checkout requires a paid SSL certificate and some special extensions to be installed on your server.

But both of them are at least better than Sagepay which cannot do some simple sums.





After a bit of testing it turns out that when Sagepay calculates the total price it only uses the "Item Tax" once per line rather than multiplying it by the Quantity. It manages to do it correctly for the Line Total column...