Made a similiar post awhile back
http://www.bluegartr.com/forum/66111...es-others.html Might help.
Seems like weve been down the same path. Im a Net Engineer / IT Director w/ an MSCE, and I used to look for extra jobs time to time, but now they just come to me.
The best thing to do is call around the local area and see what everyone else is charging, then undercut them by a great deal. Bestbuy is a great example since they charge an arm and a leg, and a feasable cost would be at least half what they charge. People will come to you on price alone.
What I did was end up charging a flat rate depending on the job (20~100) and then an hourly rate after that, if it was going to be a big job, like completly setting up a new PC, or installing a home network. A few home networks I did ran over a few thousand, though manly because of hardware.