On the Your products match ones already in Amazon.com's catalog section, you should really do something to "group" the items together that may be the same listing if there are multiple options for the product.  

I had no idea on the 1st several I did of these that there were multiple choices.

http://screencast.com/t/5G4EIRFM

Notice these are for the same product, choose one of the options, but there is nothing that differentiates these from the previous or later products.  

I would add Zebra striping or something like bootstraps Contextual classes  to differentiate different sets of products.  Since your websites theme is based off twitter bootstrap that would be the easiest thing to do.  Probably take your programmer 2 minutes to add this feature.