http://www.frightnights.co.uk/otherworl ... hp?cid=886
Docc Hilford's $1000 Seance
The First Psychic by Peter Lamont
The Table Rappers by Ronald Pearsall
The above 2 books will give you a good grounding in the history, heritage and wonder of the world you are about to enter. Docc's book is required reading.
It also helps if you have at least some belief in the paranormal. Helps to oil the wheels, so to speak. You'll also need nerves of steel!
Edit: Having re-read your post, I'm just slightly worried that you're going to "slot" a bit of glass moving into a straight magic routine, just to show how clever you are and how silly mediums are. Not a good idea IMHO. If however you want to explore the more "bizarre" side of magic, welcome!