I am looking for a game with a good suply of races, classes, armor & wepons, monsters and maps. And must be fun.... XD.... Please help...

Id say Shadowbane would be good for you. It used to cost money but now it is free and is a fairly good game.

hmm lots of people like shadowbane, i persanlly hate the camera, if you dont like it always try.
Knight online,
Silkroad although a lil limited,
GuildWars has lots of calsses, never ending, although you have to buy the disk, make sure your comp can handle it.

Does a Good game really exist? :X

guild wars is good except for the part where you have to train alone if your new to the game and have no friends

You didn't say anything about F2P so I'll say Everquest II.
It has loads of races and classes and items and monsters and maps. o_o