Many years ago I too had my little encounter with the unexplainable interations between magnets held at right angles. I wasn't looking for a perpetual motion machine, I was just fiddling around with them and the end idea was what I, (many years later), have put on my own website at: http://keithc.netfirms.com/
Just click on either one of the first two links and if you know anything about magnets or, you've experimented with the HJ design, you'll understand. I think its what you've all been waiting for.