I can't wait to get my baby back! Reading these threads I want to be out on the track.
Upgrade the driver first, as others have said. I wanted to throw a bunch of money into the car when i first got it too and luckily was able to hold off until I felt I'd reached the edge of my limits. I plan on getting the SS brake lines and some new pads/fluid when I get back to the states but other than that, push yourself and most improatntly, HAVE FUN!