I have a website specializing in edge tools (a nice way of saying machetes). We are called machetespecialists.com. I have a yahoo store currently, but am currently on a trial version of shopify www.machetespecialists.myshopify.com.
I have a fairly uniform product line, but I want customers to be able to search/sort by using multiple variables. If you look at one of my products there are about 10 attributes I would like to allow them to search by (either via tags, categories, product type, etc...).