WoW's Glamour (transmog) system. You can use any gear that's been bound to you, and you can view it in game, and even build up a whole set in the animated left window and save it for later use.
There is no limited dresser storage because all the gear images are in the client anyway, so all it does is let you use the ones you're allowed to use. One downside is that you need a special transmog NPC to change appearance or switch to a new set, which costs a certain amount of gold per item, which can be expensive (Around 600 for a full set change). If you like to change outfits many times a day, then this is not the system for you. However, it makes it much easier to build a set, since you can see everything up front.