I have been beating my head against one problem since the first day I found OS Commerce; the way it and ZC display all the product images according to one single universal size designation.

I have long skinny wands, which I want to display in a single column of horizontal images;

I have stones and crystals which I want to display in a four-across grid of small square images;

and I have fabric pouches that I want to display in a two or three-across grid of medium-sized images.

Maybe, I can set up my category display template to show the different products differently, via sideboxes overrides!