It's not non-tech, but there are numerous opportunities in the publishing / content sphere which shouldn't result in you getting sick of coding but would still use your skills.
For example, my company gets subject level experts to curate e-mail newsletters that go out to other developers, but more generally you could be (paid) blogging, writing a book (for a publisher or on your own), recording screencasts, doing online training, and any manner of things like that. For some of these you might end up doing "research" type coding but not actual "arggg, I hate this client!" type coding which it sounds like is what you really want to avoid ;-)
For example, my company gets subject level experts to curate e-mail newsletters that go out to other developers, but more generally you could be (paid) blogging, writing a book (for a publisher or on your own), recording screencasts, doing online training, and any manner of things like that. For some of these you might end up doing "research" type coding but not actual "arggg, I hate this client!" type coding which it sounds like is what you really want to avoid ;-)