Yeah, I had thought about new lock cylinders, but even at Zone prices that pushed it up to $55-$60 when you add them all in, and I'm not sure how much of a PITA it is to install the ignition set- I'm more used to OLD stuff, where the ignition switch is in the dash (yeah, an old fart here). Guess I'll call the closest dealer and ask what it would cost then decide.
I've seen the GM key trick work before, we were at a class on a Saturday and the instructor locked his keys in his S10 truck. It was a state owned vehicle, no chance of getting the spares before Monday so we were trying anything. My friend walked up and stuck his Monte Carlo key in it and unlocked it! I have tried every GM key I have, but that's not a lot.