Man,
I would love to generate enough volume to make this my full time job, luckily for me though, it is only something to fill in my spare time. I love repairing PC's but would really like to get involved in web design. As Bryce said, you can generate passive income through web hosting which is a great idea.
I generally get 2-5 jobs a week, I definitely couldn't live off it at the moment.
I have picked up some corporate jobs though, I was lucky to fix up the home PC's of a well known Scottish restaurant owner here and he said he will use me to upgrade the systems at the restaurant, which is a great score.