First, even though you've never done it before, get a PPI at a dealer. It costs ~$200. You may be really good with cars, but they can read the computer and know everything that's been going on. That, and having somebody who is very familiar with the Boxster knows exactly what to look for. That's the one thing I would use a dealer for since the Boxsters are newer and mostly serviced at dealers so they are very familiar with them.
Second, it's an addiction.
Once you own a Porsche, you will never want to be without one. That's what my PO said and he's right. After getting the Boxster for my wife, I couldn't take it on the days we drove separately to work so I got a 928. :dance: