I really enjoy the "adventure game" aspects of Amnesia but I find the monsters irritating, so I was wondering if anybody had heard of any good custom stories for amnesia that didn't have monsters in them.

I think a custom story which is actually a story would be nice, actually. Unfortunately, I think the closest thing to "no monsters" is "only monsters that disappear when they hit you."

I think you might have a hard time finding any, but take a look at Desura and Frictional Games forums, they have tons of custom stories!

As i know, there are some without monsters, but can't remeber there names. One great customstory is White Night
http://www.moddb.com/mods/white-night

also check moddb for more custom storys, there are plenty. Some are crap, but some a really great.
http://www.moddb.com/mods?filter=t&kw=Search+...&released=&style=def&theme=&game=13339&type=1

thanks for all the suggestions guys!

I managed to find one on moddb
http://www.moddb.com/mods/my-love

Painful Shadows, a very Thief-inspired mod.

registered