A con of 8 is terrible for anyone, and especially for any fighters. An 8 will take off 1 hit point every time the character levels up. See the table on p. 134 in the manual. I suggest a min con of 10 for everyone.
Int is not that important for barbarians, but you will have few points at level up time to begin with, and again, 8 will mean even less.
That low wisdom means your barb will be very susceptible to mind control spells like charm person. This is usually not a good thing.
Keep in mind that every four levels you can increase a stat by one point. So you may want to consider lowering a higher one so you can beef up the weak ones.
I myself prefer sorcerers to wizards. Sorcs don't have as wide a range of spells known, but (a) they can cast more than a wizard of same level and (b) they get a choice at level gain time, where wizards have to hunt around for spells. Finding good high-level spells can be a problem.
Nightowl2
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