Class


 * For Ability requirements for Classes, see Abilities

Fighter, Ranger, Paladin, Cleric, Druid, Mage, Thief, Bard, Specialist Mage: Abjurer, Conjurer, Diviner, Enchanter, Illusionist, Invoker, Necromancer, Transmuter

Multiclass characters: Fighter-Cleric, Fighter-Thief, Fighter-Mage, Cleric-Thief, Cleric-Mage, Thief-Mage, Fighter-Cleric-Thief, Fighter-Cleric-Mage (no Cleric-Thief-Mage available). Fighter-Druid, Cleric-Ranger

Humans can Dual Class, that is, give up one profession and pursue another, and switch between them. Humans cannot dual class as any class/Paladins or any clas/Bards. Dual classes are also limited to the Multiclass list. Race and Alignment restrictions on class apply.

When a character wishes to change to another class, the highest required Abilities for the class the character is in must be at 15. These 'prime Abilities' must be at 17 for the class the character is moving to. For Prime abilities for Classes, see Abilities

Race and class
Humans can be any class. Any race can be a Fighter, Cleric, or Thief; Gnomes, Halflings and Dwarves can only be those classes. In addition to the basic three, Elves and Half-Elves can also be Rangers or Mages. Half-Elves can be Bards.

Proficiency
Proficiency points are the only determination of attack speed inasmuch as they determine the number of attacks per round; unlike other games, weapon speed listings in D&D games do not show the speed factor of DPS, but rather are a determination of when in the attack round attacks are made. So, fast weapons hit sooner, each round. But only more proficiency points enables attacks to be made more often than once per round, and therefore faster over multiple rounds.

Fighters, Rangers, Paladins, and all multiclass combinations that include those classes, get four proficiency points. Clerics, Druids, Thieves and Bards, and all other multiclass combinations, get two proficiency points. Mages get one.

Fighter
HP/level: 10

Multiclass
Multiclass characters get double the XP, or triple for triple class characters, but half the hit points (or a third) each level. IE, a Fighter-Cleric gets for the class they are levelling

Links
http://www.gamefaqs.com/pc/75251-baldurs-gate/faqs/15202 CHARACTER CREATION GUIDE