I had a fairly intricate build worked out. Basically, my aim was a wizard that could do well in close quarter fighting.

IIRC, it ended up being

10 Wizard
10 Blackguard
10 Duelist

Basically, with 10 Wizard/Blackguard, I could cast all wizard spells. I pumped up Int which allows for higher spell dcs and synergizes with Duelist, giving me +1 AC for every Int + modifier. Basically, I ended up being a wizard that could tank b/c of parry mode.

The feats are really tricky since you have to balance Duelist feats with Wizard ones, but everything worked out in the end. If you need it, i can try to remember a more exact version of what I did