Oberon Thumbnailer for CorelDRAW 11-X5 (and Maybe X6)
Oberon Thumbnailer will import each of your photos or graphics and position them into an array on each page of the catalog. You get to choose the size of each thumbnail and the attributes of the text for the file name (if any). Sure you could leave the vector graphics or the photos as the originals, but that could make your catalog much larger than it really needs to be. Even better, have the Thumbnailer macro either convert your vectors to a bitmap thumbnail and/or resample the bitmaps.
The macro only claims to work with CorelDRAW 11-X5, but I suspect it also works in the 32-bit version of CorelDRAW X6. It does not work in the 64-bit version and we are hopeful the author can update it in the near future. Macros that call the operating system directly require a few extra changes to work in the world of 64-bits. This is a free macro and it is one of my favorites as I use it on a very regular basis. Check it out!