Pwned pretty easy, n00b.
Next time I make a D&D char (probably never outside of NWN / BG*) I'm making an archer, and I'm jacking the class description from BG2, because
jesus fucking CHRIST archers are badass. My archer in BG2 at level 17 can dish out like ~60 damage a round. Unhacked. deadly, we need to play; I'll import my archer and solo rooms for us like I did an entire room full of fire giants (they couldn't fit through the arches, so I stuck them there and ate them up one by one).
Oh, your stability check @ -9 hp reminds me of another D&D story:
It was ~2am in the morning, our group was doing D&D. We were fighting some giant spider, and it was fucking our shit up good. One kid had to leave, so he left his character for us to play. Unfortunately, he became unconscious. We did -1 hp/round, and the spider was still kicking strong at -5hp on his character.
-7hp rolls around, almost dead, -8hp rolls around, almost dead, he's on -9 hp and I'm the last person to attack in the round. I'm a rogue, and I use a crossbow. If I don't land this shot and kill him (I needed to roll a 5-6 on a 6 sided die) his character is dead. I'm pessimistic, so I give up. I roll the d20. A 19 pops up. That's a hit!
I still have to get a pretty much impossible roll on the damage. I roll. I get a six. The spider got pwned and our pally healed him back to health.
On the subject of a wizard.... go conjurer (I think it's conjurer, whatever school has magic missiles in it) and your best friends = armor / magic missiles. 'specially magic missiles! This is as far as I can remember from my experiences in NWN, BG2, and real D&D. Oh, and familiars suck dick.