It's most unfortunate you're just now breaking into the wonderful world of Show Biz in that the book
The Bush Factor by Richared Busch {
http://www.richardbusch.com/Products/TDR.htm} would lend to you some amazing insights on showmanship in general, that would move your act forward light years from where you're at right now.
This is a majorly advanced tome for the seriously invested student of magic, striving to move beyond the more mundane auspices of the craft and doing tricks here and there just for the sake of doing such. A most enlightening tome for those thinking they're the next Derren Brown or Luke Jermay.
There's tons of intermediate tomes of worthy note however, the first thing I'd recommend is that you get some business & marketing school under your belt (you're going to need it!). Hustle Hustle by Joel Bauer is still a potent tool to those new to this world along side the Fetzkey (sp) books on Magic & Marketing. DO NOT fall for all this Millionaire Magician horse puckey that's out there... paying the $100.00 --- 500.00 a pop these guys want on those tomes only makes them richer, not you. Get the Dale Carnegie book
HOW TO WIN FRIENDS & INFLUENCE PEOPLE and once you've gone through it a half-dozen times or so, take his correspondence courses. They work across the board in most every industry are a heck of lot less expensive and far more proven thant he cheap knock-offs out there based on his earlier works... which is what most of those success systems are.
As to "effects" and "routines"... find the book by Chris Carey entitled
DO THE STUFF THAT'S YOU and make it your bible for the next year or so. You cannot take routines that I do and get the same response from the audience I get nor could I take some of the things you do and get the same kind of reponse you get. We are each different in personality type, style and our ability to "sell" concepts e.g. we must each do things that fit who we are and not the same stuff we've seen, heard or read about that everyone else is doing.
Thirty-five -- fourty years ago it was believed you were ready for the big time if you had a Zig Zag, Broom Suspension and Sub Trunk... these were the "standard" prope every "Illusionist" owned it would seem... alogn with a shoddy dove/flower/card manipulation act (referred to as an "Opener") Lakes Guillotine, Zombie or Dancing Cane, and of course a version of either 3 Card Monte or Sidewalk Shuffle. I'm not kidding, almost every small time show out there had this exact composition and little else. Today everyone wants to do a Chair Prediction, Book Test, Bleed on People, Not find the cup with the knife/spike or broken bottle, float up onto a chair like Criss Angele, and of course bend every piece of metal they can literally get their hands on...
...THAT IS NOT MAGIC!
Alan has given some very valid insight as have others, but the real "trick" to it all is to be honest with yourself and strive to go beyond where you are right this minute. Don't be afraid to ask for critique and TAKE IT! (especially when you don't want to). The day your stop allowing your magic to grow and represent an aspect of who you are and what you stand for in the scheme of life, is the day your fail and quite possibly the day you'll die... but that's another issue altogether...
