Support and maintenance

I am looking for someone to hire to provide personal support and help with my wordpress blogs. I have been able to work with it for a few year but now want to set up a blog with multi-authors (not mu) and I want to find someone who can fix all the technical things that come up and do some minor customization.

I seem to always end up with database errors and such that the webhost is able to fix by restoring the database (and I loose posts) and hope to avoid that by having someone that knows more than me about setting these things up.

Is there a directory of companies/people that do that?
thanks
Julie