Blizzard has posted a short article that gives a quick overview of the crafting and salvaging systems, along with a mention of the sell-items-anywhere Cauldron of Jordan. It’s introductory level info, intended for the B.net masses, but you may find it useful.
On a related topic, I’ve seen (and experienced) some confusion about how exactly the Stone of Recall works during the Diablo 3 Beta. When you use the Stone of Recall your character is motionless for 10 seconds to cast the spell. If you are undisturbed for that time, you teleport back to town, appearing on the Waypoint. You do not actually cast a Town Portal that you can walk through. So you can not use the SoR before a battle to create a portal which you could then use for an emergency escape.