You beat me, Lordblood! I was 17 when I got my first Porsche. 1968, I bought a '64 356C Cabriolet! Now wait till you hear this.............$1900!!!
Congratz and listen, very carefully, about the advice for a good drivers school.
I do believe Skip Barber does a winter school in Phoenix and Skip is excellent. I sent both my daughters to him. Besides, he was the first Formula Ford National Champion.
Sorry, went and checked it out, nothing in Phoenix, closest is Laguna Seca -
http://www.skipbarber.com/driving_school/driving_school.aspx
Seriously, this is the BEST money you can spend.