I myself play with gamma jacked up because I can`t see in situations where is isn`t broad daylight in the middle of a field. Now I think the game loks alot nicer with a lower gamma setting but going through some areas it is just too dark to see anything sometimes.
I remember in dark age of camelot we could hit the T key and it would illuminate you a good bit to where you could see where you were going or what you were doing. I have tried holding a regular torch weapon for a light source and that don`t even make a very big difference. I`d like to see some kind of lighting aid you could toggle that had a slightly larger area then the normal torch but at like 2-3x the brightness. And please don`t make it any kind of flickering or wavering type of light source. That just hurts your eyes even more.