iNTELcart shopping cart recommends

Payment gateways:

PayPal
start accepting credit cards today, open a merchant account

WorldPay
Internet Payment Solutions for Credit and Debit Card

Authorize.Net
Payment Gateway for Accepting Online Payments

2Checkout.com
internet merchant account for businesses

CyberCash
Payment Gateway/Internet Merchant Accounts from VeriSign Payment Services

 
e-commerce templates:

Ecommerce Templates
Shopping cart software for Frontpage, Dreamweaver, CSS and Golive ecommerce software templates.

Monsterwebdesign
Logo Design, E-commerce Web Design and Ecommerce Templates

ecommercetemplates
Ecommerce Shopping Cart and Hosting Specials

allwebcodesign
complete sites with shopping cart instructions