Best Zen Cart Setup using PayPal?

Hey ya'll!

I have my Zen Cart customized and ready to go. As of yet, I have not installed any payment or speedy shopping modules. But I am thinking about doing so.

What is the best Add-On payment module when you are using PayPal only (no authorize.net)?

Speed and ease is important for the customer. What can I ADD to make the basic Zen Cart function better, faster, quicker, smoother with PayPal?

Also - I need to have Authorize ONLY capabilities. What PayPal or payment modules allow for Authorize ONLY? If you are going to suggest Super Orders, please include installation directions for it :)

All input welcome!
Thanks!
Luci

LuciStuff:

.........What is the best Add-On payment module when you are using PayPal only (no authorize.net)?

Speed and ease is important for the customer. What can I ADD to make the basic Zen Cart function better, faster, quicker, smoother with PayPal?

PayPal Express Checkout is the fastest and best option. As for how to install see

• the PayPal documentation on the PayPal site
• the tutorials and wiki of this site (links at the top of this page)

LuciStuff:

...Also - I need to have Authorize ONLY capabilities. What PayPal or payment modules allow for Authorize ONLY? If you are going to suggest Super Orders, please include installation directions for it :...

I have never used Authorize Only capabilities, so afraid I can't help you with that question.