When a Wizard levels up from 9 to 10:
* +1 Base Attack Bonus
* +1 Base Will saving throw
* 2 + (unenhanced INT modifier, ie. 4) + (1 Human bonus) skill points. (+7)
* Increased # of Spells per day (look it up in the SRD will ya
)
* 1d4 + con bonus hp.
* Metamagic or Item creation feat. (10th level wizards get this as a bonus feat)
* 2 extra spells in spellbook for free from 0th to 5th level.
I think that is it.
In advance, from 10th to 11th (slightly less spectacular):
* 2 + (unenhanced INT modifier, ie. 4) + (1 Human bonus) skill points. (+7)
* Increased # of Spells per day, first access to 6th level spells
* 1d4 + con bonus hp.
* 2 extra spells in spellbook for free from 0th to 6th level.
Rav