I'm so excited for you! I can't wait to go back there someday! Some absolute must sees:
Stores:
Hex
Omen
Laurie Cabot's Witch Shop
Crow Haven Corner
The Broom Closet
There are tons of others, but those are my favorites...well, ok, I haven't been to Omen, because it just opened, but the same guy did Hex, which is by far the coolest shop in my opinion.
The museums are kind of hokey but fun...any of them are cool.
You MUST visit the Old Burying Point cemetary...it's the 2nd oldest in the country, and is vastly cool. Also the Witch Trials memorial is right next to it, which is cool.
There's so much more I could say, but time is short for me today! If there's anything specific you want to know, just ask. I loved my time in Salem and am so jealous you're going there!
Blessed Be!*
Velma