"Autocrossing with my Wife" could be a reality TV show.
I'm a big fan of learning to autocross first then moving up to track day stuff. Most of the faster kids in the pro touring circle have a strong autocross background. (Popp, Hobaugh, Maier....) Tim is right, the skillset is different but the basic principles you driving around cones scale up very easily. Road racers have a hard time speeding up their inputs usually and find that autocross moves too fast for them......even at 1/2 speed.
So I would recommend a Phase I/II weekend with Evo followed by all the seat time you can get.