I am lucky enough to be able to work from home often. The only downside to this is that the $99 Officeworks special that I've had for 5 years or so is extremely uncomfortable for anything longer that a couple of hours. As I am working from home, I figure I can probably claim the chair on tax if I buy before the end of June.
I am thinking of a budget of sub $400 ish so it probably rules out any carbon fibre Scandinavian works of art. Fashion/design play a far distant second to comfort for me if that is even applicable at my price range.
Why not treat yourself with one of these?