Posting this here since was mentioning in another thread for someone else… don’t know if links work or not, so “housing (dot) wowdb (dot) com”. It shows images of nearly all the furniture currently in the game, and lists sources for most of it, particularly the profession, dungeon drop, and a lot of the reputation stuff. Worth checking out, particularly if you’re looking for racial items and the like.
Edit: Similarly, there’s an addon for the live game called Home Bound which tracks the current achievements that are associated with furniture and such you can work on, as well as preview pics of said furniture, and other housing stuff. Wowhead did an article on it a bit back, and it’s up on Curse. Like the previous link, figured it’d be helpful for those wanting to start on collection now or after the ptr ends, rather than being bottlenecked by it right at the December launch.