Tried another Sweetfx preset other than Viveks' one but I'm still getting ridiculous amounts of black crush. Guess I'll just stick to the default colour scheme (which I don't mind).
Not sure how people can play with it though, I literally can't see shit at night time.
Fantasy is a great preset, but there's some crushed black. The one I use is very very similar, but the shadows and blacks are brighter since the last version.
http://sfx.thelazy.net/games/preset/3712/