Few days ago I've programmed basic brains for monsters. They are not too smart, but I needn't it - even now three or four monsters can kill you easy because of gameplay style :)
I want to achieve AI behaviour like in classic Doom first. It's too early to describe AI in details, so it's just a "progress video post".
* thinking about voice comments for future videos
Looks neat, what kind of game are you going for here? it looks like a really basic dungeon crawler of some kind.
I think it's better to describe the game like "Doom with Diablo's gameplay elements and camera" :)