Mark - you are getting some great advice here. I would suggest a slight modifier to HyLyte's excellent summary: What you actually decide to do will depend on your tolerance of risk, and the value, age and size of the boat.
Full rigging and engine inspection are definitely an option if those are in any way a concern; my engine had 200hrs on it, and had recently been re-rigged. My surveyor gave both items a good inspection (including heat-gun on the engine, magnifying glass on rigging, etc), cautioned me that a full survey would be required to give a detailed assessment, but said they looked in line with reported age and use. Given my particular situation I decided not to do the full engine and rigging surveys. Or a bigger/more valuable boat - yeah. What you so for a Santana 22 wouldn't be the same as an Olsen 54!