Anyone who works with or has expertise in anything technical. Techanics, much like their sibling the 'mechanic', are placed in situations of similar power with regards to screwing you over monetarily without you even knowing.
Most of us have a techanic we go to that we can trust when we have questions about building a website, or buying a computer so when we go shopping we won't get gouged on the prices.
I went to best buy to purchase a new computer, but the techanic up there just kept trying to sell me features I didn't think I needed, and quoted me a $2999 on a new basic system!
Josh, my techanic, says Web 2.0 is overrated.