[TheCrimsomBlade]

With NWN you can alternate each time you level with one of three PC's. I found the Fighter, Wizard, Bard to be A good combo.
The Wizard, Ranger, Thief, Has also worked real well in a number of game too.
Once you upgrade to Shadows of Undrentide you can build a wizard/Paladin mix and become an Arcane Archer. You'll be able to use every wizard scroll and also have the power of a Very powerful Archer with the abilities to use Arcane Magics and build Arrows that will kill the strongest Monsters and NPC bad guys.
Or you can go the Exact other way with The Black Guard class which is an Evil Black Knight with the Wizards Arcane Magic and the Power of the dark side of the Palidin with out the pentilties of the fallen Palidin but all the benifits.
The only requirement are :
1) Feats: Hide 5 ranks
2) Skills: Cleave
3)Alignment: Any Evil
4)Base Attack Bonus: +6

Best way to make the Character you want is first start as A wizard or Sorcerer for two levels and then level three take on the Ranger or Fighter class for two levels then return to the Wizard or Sorcerer class. You could also add a third class as a Thief or Bard to give to the ability to open your own locks. But in the first NWN without the two expansions I would only use Two classes and bring a thief henchman with you. This will allow you to gain Higher levels in the Magics Classes.

You May even enjoy The Druid/fighter Class mix or the Sorcerer/Druid can be alot of fun and with the higher Druid levels you will gain some great spells and mastering the Staff weapons and wands even at the lower levels you'll hold you own against the bad guys.

Good luck and once you start the first expansion the game impoves 200% in both Quallity and graphics not to mention the higher levels you can reach.