My physics isnt up to scratch but i would imagine that if you assmbled magnets in such a way that the centre magnet is influenced into constant rotation then the energy produced could somehow be harnessed by using copper coils or however they do it.
Again, my knowledge on this is very limited. But its very suprising too see that this kind of energy has not already been harnessed.
And for you OP i really admire the way you are taking initiative and trying to do this yourself. If more people were this way inclines we could bunch together a brainstorm a way to create free energy. It is possible, our governments have this technoligy.. Personally all i need is to know that it is possible. Where theres a will theres a way.
And op, just to give you some motivation ;
http://www.youtube.com/watch?v=SvB3PiPBozU