Everything thus far unpainted gets a coat, and the visible bits of the shelves get a second coat, and are left to dry.
A quick sand down the top and front (drawers and fascia), and then a second coat of paint for a smoother finish (apparently).
It might turn out that the insides of the drawers will need a second coat, or the commonly visible parts need a third - but I can always go back to it if that's the case. Probably not though.
So that's the cupboard done - de-shelved, re-shelved, and drawer-ed:
Job's a good'un :-)