If the timing belt and associated components hasn't been done, you're getting close to the mileage where it could fail, causing major expensive damage (it's an interference engine). Not exactly a "tune up" item, but probably the most important preventive maintenance item to plan for.
PCV system maintenance and making sure the oil cap is the "updated" design with pressure relief is another important consideration to avoid blown gaskets. At a minimu I would order an updated oil filler cap if you don't have one (it should have orange graphics on top).
Then plugs and fluids/filters would be things to look at. Brake fluid should be flushed every 2-3 years or so. I usually let my ATF fluid go for around 100k miles, but others change after 60k (or less). If you have a stick this could be different. It wouldn't hurt to flush the power steering fluid, but I think that could wait until 100-150k.
Just my opinion...