I would give him 1 level of fighter for every two of sorcerer. That way he will be a slightly less powerful mage, but will be able to hold his own in a straight fight. I actualy did this (with a half-orc!). It was quite fun.

its too easy with my char. "oh look another lot of monsters *yawn* (already got stoneskin miror image up) Summon some monsters and some of this and that and hmm thats good eatin. Im planning on starting again maybe solo barb with either skill in greatsword or duel longsword, he will be chaotic neutral so that he does whatever he wants when he wants and he only does something if it gets him further ahaed or helps him in some way. Maybe not solo though maybe with a cleric/sorc or wiz aswell or maybe stormlord of talos. any ideas would help.

I donno I dislike sorc char..
I would go with a pure non-classes wizard (as I did btw)..
Omg the fun this involves.. I gave him like 17 int for starters and man he rocked..
You scout as invisible all the time and fireball groups (btw get extra penetration and +to fire dmg and fireballs are too good to b true ;) )
Problem is again to get a good amount of XP, but Bozos already gave you the solution so there should be no problems.. I'm now in chapter 5 with a lvl 22 wizzards, almost untouchable.. This rules..