On a second thought and after a bit of googling, don't you think that Propp-Wilson Cycle Popping Random Tree algorithm would be more efficient ?

Actually, I'm looking for more path randomness, but competitive performance/speed is definitely a minimum requirement.

The paper describing the article is at http://dbwilson.com/ja/ It is very well explained and pseudo-code is clear enough to easily implement it :)

I'll read up on it when I get back from the dentist.

Cheers, Jonathan

You too. Cromwell __________________________________ Do you Yahoo!? Yahoo! Finance: Get your refund fast by filing online. http://taxes.yahoo.com/filing.html