Joe, you're getting into the area of stage illusions, which is a subject that's as complicated as card magic, in its own way.
You probably want low-cost stuff to learn and get some performing time with. Look in the back of the Mark Wilson Course In Magic (available at regular bookstores, or through any of the big magic dealers) for a bunch of stage illusions that you can make out of corrugated cardboard, foam core board, etc.
There's also a new book by Paul Osbourne called "Easy Build Illusions" that's less than thirty bucks. It covers stage illusions that are easy and inexpensive to build. Look on page 52 of the March 2002 Genii for the ad.
Once you put one or two of these together, you'll have to find some friends who are willing to be assistants and work with you so that the staging of your new miracle looks good. Use a video camera to tape your rehearsals if you can get one. And spend time picking your music...but that's a whole different subject.