I am converting my static website to an E-Commerce website. I do not have a merchant account. I want to avail the services of a company, who should be able to accept my sales credit card payments, process the payments and then send me an Instant Payment Notification of the payments received on my website. Which companies provide these services.
In fact, almost all companies listed here: http://www.cgi-central.net/scripts/amember/features.php#paysys allows immediate payment handling.
All your needs for your e-commerce business can be acquired from companies like stormpay, 2checkout and www.ikobo.com . Your customers credit cards will be accepted and processed. Payments received IPN will be sent to you. Shopping card is also ready for use by you for your customers at these sites. ikobo.com integration is easy. I am one of their satisfied customers. I pay little fees to ikobo and avail these mandatory e-commerce services.