Do you need to integrate your Zen Cart with shopping sites like Shopping.com, Bizrate, Nextag, Pricegrabber, etc? This may be a good solution for you.
This solution does not integrate with the Zen Cart administration area. This is a stand alone mini application of sorts that connects to your Zen database and would need to be placed in a password protected directory on your server.
The interface lists all the products in your Zen database with checkboxes next to each. The list is sorted by price so you can click all products above/below a price threshold if you like.
Included are a few PHP files that would need cron jobs to run weekly, or whenever you schedule them to run. Most shopping sites like to be updated weekly. So, this would save you lots of time and eliminate the need to maintain multiple spreadsheets and upload them each week. The system would do all this for you automatically.
Server requirements: PHP 5, ability to run cron jobs
Installing and configuring should be done by an experienced web developer. This is a no frills, bare bones mini application that runs efficiently. So, there are no pretty graphics on the interface. Just good old fashioned functionality.
Of course, I’m available to install this on your server. Contact me for details including pricing.