Do you have a good (and TRUE) wild surge that you had happen to you? I have a few

I am currently in Ch. 6 of Bg2, so i can't speak of a wild mage's usefulness in ToB.
Unfortunately, my most surprising wild surge occured just before resting while in the planar sphere, and not in the middle of a fight. I thought i'd cast NRD on my Simulacrum spell just to see what happens. I got the "Roll twice more, both effects apply" followed by the spell being cast as an area effect, then spell cast normally. So i ended up with a Simulacrum cast for every player in my party. Would have been so cool if this happened in a fight

Although, if it happned during a fight, i wonder if the area effect would have cast Simulacrum on the enemies. Hmm.
Another good one, cracked me up silly when it happened... I was fighting the Shade Lord on the Umar Hills quest. It's towards the end of the fight and I cast magic missile or some single target attack spell on the Shade Lord, hoping to kill him off. Instead, MOOO!! A cow falls on him killing him and ending the battle. I almost died laughing.
Unfortunately, just today while challenge fighting in the tavern of Ust Natha i had a wild surge of, what is it, 80% of my gold destroyed? Then I cast NRD on a Time Stop which cast normally. I figured it was karma (... read: i forgot my gold was destroyed and accidentally overwrote my saved file). so i went from 80k to 16k or something like that.
Another funny one, while fighting a room full of undead on the Korgan book quest, I cast something and it was recast as summoning about 20 squirrels. Once again, i cracked up. Those little buggers sure helped occupy some undead while i hacked my way through.
But lastly, one of the most useful though it only happened once (while fighting in the challenge pit in the tavern again) is where the spell is cast, but you recuperate as if you rested. So all my spells where back and available. Those drow never really stood a chance
I like the wild mage, it sure sucks when things go bad though. Dizzy, itchy, protections dispelled. uhg! It seems to work in my favor in the long run though. I may just have to replace all my level 1 spells with NRD though and get real nuts!
peace,
Dulouz.