I am considering building a site based on Amazon Web Services whereby you can use either xml over http, SOAP, or xsl to access Amazon's product catalog and earn commissions on sales you generate.

Before I dive headfirst into this effort, I would like to hear from my fellow monks about their war stories about how well it has worked for them. Specifically:

How well does it work?

Should I go xml over http, soap, or xsl?

What Perl modules should I use?

How much affiliate revenue has it produced for you?

Anything else that I should know.

There are no Perl samples with the Amazon sample kit so I am guessing that I am on my own to figure this whole thing out (which I don't mind because I know I can always count on you to provide lots of helpful advice).

Thanks in advance for your help.