Voted medium. I would do some of the heavy lifting stuff but I prefer to use a pro for those items as you can really screw something up if it goes wrong.
Stuff I do:
Motor Oil
Tranny Oil
Brake Fluid
Pads and Rotor
Exhaust System
Misc mods (cosmetic mostly and some "performance")
Rad cleanouts
I wash her but I pay a pro to do the paint (i.e., clean, polish, wax, etc)
It helps to have a lift at home so not only do I get to wrench on my car, but a few of the local guys cars as well