There are a handful of websites, catalogs, and stores that I like to browse for steampunk home items. One of the best is The Sundance Catalog, Robert Redford's lifestyle catalog.
I like this description of the catalog by Redford:
"To us, Sundance is and always will be a dream. What you see, smell, taste and feel here is a dream being carefully nurtured. "
The inventory turns over within a year, so you'll find things mentioned in the Kaboodle list that aren't available anymore, but they replenish it with plenty of wonderful new things. Here's a sampling of what's currently available.