I know you get this from dungeons, but im not sure which ones, or how to obtain them once I find the dungeons. I appreciate anyone who can shed some light on this for me. Thanks.
It might have changed, generally sets from 4 man dungeons or raid is BoP, overland stuff is BoE, note that some of the overland sharpened weapons is insanely expensive in the medium to large house level.
Gear from instanced dungeons is tradable within the group that you were in when it dropped for 2 hours, after which it becomes bound to your account. The worm's Raiment set now drops in Vaults of Madness group dungeon.