From my point of you dont have to be a mad car head. Put it this way, how comfortable are you at changing a plug, doing a bit of blocklaying, painting, tiling, woodworking, fixing things???
If you have a bit of patience then it is quite straightforward. Now I have said to a number of people here at work that I service the car, and they are of the mind "I would never chance that".
Maybe if you are of the mind that mowing the lawn and filling it with petrol is a mission, then you should walk away from the service
What I have is a good socket and wrench for taking out the sump nut to let out the oil.
I have an oil filter removal chain for taking off the oil filter.
I have a paint bucket to catch the oil and an old oil container to put the waste oil in.
I have good strong, very important not a cheapo one which I had before, plug socket for taking off the plugs, also a socket wrench and extender arm to get down into the plug.
thats about it, takes about 1 hour or so.