If you want to check out some more DIY articles, check out Pedro's Garage:
DIY Projects: Do-it-Yourself Repair and Maintenance for your Porsche
I have never worked on cars before, but in the 1+ year I have had this one I have done:
Front brakes
Brake and clutch bleed and flush
Fuel Filter
Air Filter
Cabin Air Filter
Headlight swap
Oil change
Oxygen sensor
Replace ignition switch
Replace Headlight switch
Change transaxle oil
Replaced spark plugs, tubes, and O-rings
I am probably leaving some out. If I can do it, anyone can, and I saved a ton of $$$ by DIY.
There are a lot of great learning resources, including this forum; without them I probably wouldn't have attempted any of those work items.
I have just started down the slippery slope of track days now as well...
They are fun cars
Welcome to the madness
Steve