My products & Vendor products

My products & Vendor products

I would like to make separate entries for our products and our vendor's products. That is, for each product we sell we have one or more vendors that supply that product to us - with their own product number and cost. I created a lookup field for Products on the Product page so I can associate each vendor product with our product that it corresponds to. It then created a "Products" related list in the Products module, but it does not show up on the Products page. I've tried re-ordering the related lists for "Products", but doesn't show up (or any related list after it). It seems like some kind of bug. Either way, let me know if there is a better way to do this.
Thank you.
cdarlow