free alternatives to SwissSys? I was going to do a tournament recently, and then, I found out just how much $$ SwissSys Tournament software costs...  

My question is: 


  What good alternatives to this expensive mainstream software are there, if any?
The one I like is Vega - http://www.vegachess.com/tl/index.php. This is free on Linux. The guy who wrote it is an open source supporter who welcomes feedback and is willing to make changes. He is also an active FIDE arbiter. It is also free on Windows for up to 30 players and 50 euros for unlimited use.

There is a review by an English arbiter here - http://chessarbitersassociation.co.uk/Vega.pdf.