I started a round robin tournament with is verry interesting so far. Livegames transmission stoped, but tour is still going on.
conditions:
KO- 2cpu , running on Intel i5 2500 (4 x 3,4 GHz)
round robin tour, 4cycles = 220 games, timecontrol = 25min 40moves + 25min 40 moves + 25 min
most engines use 2 cpu(except Komodo), 64 bit and sse4 if possible, Nalimov tablebases (40GB) if possible
ponder = ON
1024 MB hashtables
Grandmasterbook limit 5 moves
more information on my webpage. Enjoy

Kind regards, Clemens keck
http://www.clemens-keck.de/base.htm