I am currently a linguistics PhD student and have my own translation company. I enjoy translation and interpreting very much. I have several steady clients, and manage translation into all languages for them. During the school year I am very busy, so I often subcontract work to other translators.
I have plenty of work, so from September-May I generally don't take any extra work on. I use Proz.com to find subcontractors for the translation jobs that I manage.