Too late
When you say "Stage Magic" what are you referring to, big illusions or hand sized props such as a Vanishing Dove Cage, the Zombie or Dancing Cane?
Stage Magic emcompasses a very large aspect of magic in that it can include elements of Parlor magic (Manipulation & intimate material such as Mentalism) or it can get as grand as you find on the Las Vegas Strip. So you may want to refine your question a bit.
Oh! And if you're talking about the big stuff, I hope you have lots and lots of money to invest... that cute little cage for the birdies that vanishes I mentioned above... the best on the market is made by Norm Neilson and retails for around $4,000.00 and it's not even close to being a big effect... and it only takes 15 seconds to pull off... so think about it.