I think the scope of what, exactly, you will be doing with the technology is needs to be more defined. Is it necessary to have scheduling software for a smaller operation? Probably not. For a larger operation? Probably so. I think a word processing program and spreadsheet are required for just about everything at this point. I'm almost surprised not to see a laptop hooked to the dishwasher at this point.
As for MasterCook or other recipe authoring software, I think that is subjective. Are they good organizational tools? Sure, if you have some organization going into it. There are no magic bullets. All of that said, I save everything and will try (just about) anything. Never know when I might be able to re-invent an old tool or borrow a conept from somebody else. So, to answer your initial inquiry, I would say... whatever works for you. If you feel you are lacking in an area, maybe it's time to look around for a solution.
I don't know if this is for what you were looking, but it is what I, anyhow, can offer. All the best!