Product Feeds w/o Shopping Cart?

I’m wondering if anybody has any recommendations on sites that accept product data feeds without requiring a shopping cart to be installed.

I have all my products databased with base pricing, so a feed isn’t a problem to create but everything is pretty much customized by the customer over the phone or in person and a shopping cart isn’t in the near future.

I assume you are referring to the shopping comparison type feeds. Ie like the google product search and shopzilla etc. None of these require you to be using a particular shopping cart they just have requirements about how you format the feed for their service and making the feeds for each different feed service versus having a shopping cart do it for you.