OK some of the basics...
Elves of this world are either Iosan elves (sort of a standard race of elves that are dying out) and the Nyss (northern or winter elves who reject the 'dying' out ideas and follow a winter god called Nyss)
Gobbers - this worlds goblins. They come in two type (can't remember right now), but they are basically the short, sneak and smart ones, and the bigger dumber ones
Trollkin - kind of half-human, half-trolls. They are primitive, but not overly viloent (except vs. those whom invade their lands).
Ogrun - kind of this world Ogres, they are very militaristic and bound by oaths. Most are bound to the Dwarf nation and fight for them. They are big and mean, but NOT evil.
Bodger - Gobber only class, basically a mister Fix-It, they cobble all kind of tech together from junk that works surprising well!
Fell-caller - Trollkin only class, they are sort of the bards of the Trollkin, and they can yell so loud that it can stun or even kill opponents.
Gun mage - sort of a sorcerer who can use pistols as magical focuses (and their weapon 'familar' as a normal sorcerers famliar)
Ranger scout - basically a non-spell casting Ranger. Some of the stuff they do with this class I don't agree with BUT otherwise it is cool.
Yes Berserker is just a fancy name for Barbarian. There are very few barbarian people left except for the Trollkin, some tribes of Ogrun and a few others.
No fancy names for Monk, and there are two basic orders that I can't remember right now. One is LG and the other is LE or N I believe.