Maybe someone else already figured this out, but monks CAN WEAR ARMOR. Sure, I've only found one type, but's it's still pretty good armor. All you have to do is get Keldorn in your party, take his firecam plate mail, and put it on a monk. It actually works.

Actualy, you need a charaisma high enough for that armour - anyone with enough CHA can wear it.

This is due to a bug in the game, to fix it would require changes to file formats and altering the EXE in major ways. In other words it aint happening.

Just unzip this in your override folder, that should fix it.

http://pages.infinit.net/luvian/NPPLAT.zip

I thought you had to have a character (not just a Monk) whose stats were at least equal to Keldorn's in every respect. Hmmmm.

I also had an Assassin->Fighter who was able to wear Valygar's armor, but strangely not his katana. All of his stats were equal to or greater than Valygar's. I've heard Valygar's armor also permits Mage spellcasting.

SixofSpades,
you can wear Valygar's armor with an assassin because stalker armor usability is the same as thief usability. If you have stats at least equal to valygar in all respects, you can wear his chain. However, his katana is only usable by rangers with stats at least as much as his. Unfortunately for Valygar, since his katana is unusable by thieves, he cannot backstab with it. There is a Baldurdash patch that will fix it the backstab issue by making it also usable by thieves, but with the same restrictions as his armor. So you can take his katana AND backstab with it!