Oh, so there is a "darker dungeons" mod packaged into that "realistic lighting" mod i've heard so much about. Thanks

No I think dungeons in Skyrim are too dark as it is. Too many chests I've missed out on because they've been tucked away in a dark corner, Torches are useless for lighting a dungeon and Candlelight has to be recast every 60 seconds which just grinds on you.
Maybe they aren't too dark but there certainly needs to be a better method for illuminating them.
And as for this; i would prefer to get a darker dungeons mod, along with a mod that boosts sources of illumination (magelight, torches). It feels more realistic than being able to see everything.
Also, it gives draughr dungeons a bit of an "amnesia the dark descent" feel, and adds some adrenaline rush to the game, hah.