The folks at Level9 Host are great! They give you too much for the money, and they're right there with the support you need. From $9.95 starter/personal sites all the way to your own dedicated server and beyond.
E-Commerce: Credit Card / Electronic Check processing
Trust your e-commerce transactions to a company with over 10 years' experience! QuickCommerce enables you to automatically accept, authorize and process secure credit card and electronic checks directly through your web site. And Merchant Master by QuickCommerce offers fast credit card processing for non-internet businesses. Reasonable merchant qualification standards.
(If you're taken directly to the application form (oops), click the Home Page button at the left end of the top menu.)
PerlShop Shopping Cart, Accessories & Consulting
Dave Godwin at WaveRider Systems has taken the time-proven PerlShop electronic shopping cart script to new heights, advancing the script from the old freeware to a rock-solid version 4.+ ... and it's fully licensed by the original authors and still free! Dave has created some nifty accessories that are available for sale on his site, and he's available to assist or trouble-shoot your set-up from server configuration to e-commerce integration.