Just read some interesting articles about propulsion using high currency.
Here are some links :
http://jnaudin.free.fr/lifters/ttbsaucer/
http://www.tdimension.com/lifter.html

Here's a page about how you can build your own "UFO" using the power-supply of an old monitor. Patrick, are you listening ?
http://jnaudin.free.fr/html/lftbld.htm