The easiest and cheapest way to automate some of the process without adversely affecting quality, though perhaps is using malt extract instead of going through the entire mashing process. Malt extracts come in many varieties already (different grains, caramel, roasted etc.). So, unless the recipe requires something truly special you should be good to go.
Other than that, there isn't much you can do to streamline the brewing process itself (boiling - cooling - fermentation - bottling).
Someone posted that not long ago and it seems related to brewing.