I honestly think that you will not find a better camera for under £100 than the new plasmacam 720-S. It has a 60 degree angle and is small, and very robust. with mounts making it ideal for paintballing. check the thread over on uk scenario.
http://www.ukscenario.com/forum/viewtopic.php?f=10&t=24062
http://www.ukscenario.com/forum/viewtopic.php?f=10&t=24062