some interesting general gaming tips including seat positioning, mouse settings/control etc from dim here:
http://forums.prounreal.com/viewtopic.php?t=37114
it's directed towards 2k3, but half of it can be applied to UT as well
http://forums.prounreal.com/viewtopic.php?t=37114
it's directed towards 2k3, but half of it can be applied to UT as well