My campaign is pseudo-historical, set in dark ages Europe. I allow all the standard PH classes with the following exceptions:
The Monk is called a Pankrationist, a Greek martial artist. The oriental weapons have been dropped in favor of gauntlets, daggars and short swords. "Ki" strike is called "Pneuma" strike, with other naming changes.
The wizard has been dropped and replaced with an alchemist class. The alchemist idea fits the setting much better, and sorcerers are still an option. The alchemist is a homebrew class, with typical features as you would expect.
I've added the Rune Mage from Spells & Magic by Bastion Press. Only dwarves can take the class, and dwarves cannot have any other spellcasting class (due to their wierd background in my game).
Finally, I've added "The Medium," another home brew class. Basically, it's someone who deals with spirits; in concept, like a lot of the shaman or witch classes written. However, I wanted to allow for a kind of city based, Gypsy-like, crystal ball peering, fortune telling characters as well.
FM