2. Can you pick up AND move/search, or is it one or the other?
In the Growing Hunger expansion, there are new rules involving Exploration tokens. Heroes who end their movement in a building with such a token may reveal the token for a chance to take a free search action, or risk nasty consequences.
I couldn't stress the importance of these rules for my group; we just can't play LNOE anymore without the Growing Hunger rules!