Decorating seems easy but once you start checking styles and colour, it could be longer and complicated that you were expecting.
Feng shui is a Chinese philosophical system of harmonizing the human existence with the surrounding environment, so it has been used to decorate with balance.
But if you do not want to believe or you already have clear ideas, these are a list of amazing magazines that may help you in your trip.
Here a good one only for wallpaper http://www.wallpaperdirect.com/us (really nice but I can decide with so many options)
And make sure you are checking properly Color Psychology (http://en.wikipedia.org/wiki/Color_psychology).
All the best if you are in this crazy adventure, I hope you have all the brillian ideas and money to make it real; otherwise check all the recicled ideas to decorate your place too.