Quick heads-up: if you're on Second Life, be sure to upgrade to a viewer that properly supports Server-Side Appearance (SSA, formerly known as Server-Side Baking) soon. According to the Lindens, a significant portion of the grid (one of the server RC channels) will be switched over on the 9th of July. If you don't have an SSA-capable viewer then, others' avatars will fail to render properly. (I've also been told that YOUR avatar may fail to render properly for others, but I don't know if that's true.)
So make sure you're using a viewer that supports SSA by the 9th of July!