Um, the bonuses for the Human Wizard aren't high...
+4 is the Wizard's Intelligence, which is what they use for most of their attacks.
YES! that must be what I'm missing... everything looked high... Thanks,Appropriate stat modifier + 1/2 level + proficiency + enhancement bonus + feat bonus + power bonus + unnamed bonuses. Those are the typical modifiers you would run across. There are a bunch more, mostly conditional, that could add in.
How do you figue the BAB for the characters...
Is it half level only?
I can't seem to figure out how to do an attack bonus???
Is it 1/2 level + ability modifer only?
Why are the attack bonuses for the pregens on the Wizard's site so high?
What am I missing?
Aluvial
There is no BAB any more. Your basic attack bonus at 1st level with a weapon you're proficient in is 1/2 level + ability mod + proficiency bonus (which you'll find in the Weapons chart in the Equipment chapter). Later, you might get feats, powers, or magic weapons that further add to that.