Need a gallery plugin

Building an affiliate site for a client. This is a Wordpress Multisite and the client is not very computer friendly. The navigation has different categories like health & beauty, travel, automotive etc. What I am looking for is a gallery that accepts external html images/links so that each page can display a gallery of affiliate links pertaining to that pages category.

Client is getting external links from Commission Junction and look like this:

<img src="" width="120" height="60" alt="" border="0"/>

I want to be able to create different galleries of these links so that the external image shows on the page. I could create a gallery of many travel links and that gallery will show up on the Travel page etc.