Well, I have had the opportunity to get through the shakedown period with my "new to me" 3.6 Boxster S and I have a list of upgrades and fixes. Overall the car is awesome, there are a few niggly issues that I am sorting out. This is what I am planning on doing in the next few months.
1. Zeintop
2. Rebuild gearbox, second gear is a bit crunchy, the box has 95k miles on it, add LSD
3. Replace IMS bearing, while I am in there
4. Install Sachs 911 spring clutch to reduce vibrations/harmonics from single mass flywheel
5. Reflash DE with stock curves to smooth out vario cam in low rev, high torque situations
6. Coilovers with adjustable GT3 toelinks
7. 18" wheels and Falken tires
8. SS headers and exhaust
By the time these are done I will have a whole new list I am sure.