Not an expert but I'd say....
Take into account your build and what's normal for a guy your size.....
Also take into account the state of your swing......if your swing really needs a lot of work.....do you really want to fit the clubs to THAT swing???....or do you want to get something normal (within a normal range) for someone like yourself.
i.e. say you're a slicer......your clubfitter might tell you he wants to set your irons wayyyy upright (cause according to his fitting you come in steep and the toe digs in otherwise).....
Anyway be careful and ask lots of questions related to this stuff.
If that's off someone straighten me out.