If you already know how to download fan missions for Thief 2, I highly recommend the T2X: Shadows of the Metal Age, the complete campaign from the mod community.
I also hate zombie levels, which is why I LOVE Thief 2. The steam golems might seem annoying at first, but at least you can stealthily despose of them, unlike zombies(zombies wouldn't bother me at all if you could get rid of them like you can guards, but most of the methods of taking them out either cause a ****load of noise, or require the use of items you are in far too short a supply of).
I also don't like scary **** in games.
That said, I HATE HATE HATE The Cradle in T:DS...I realize it's a brilliant work of first person survival horror, but I just fell apart playing it the first time.
Otherwise, its a great game. Don't much care for the city hub portions though. Actually preffered the linear method of the previous games.