engine oil:any old school 15W-40 will be best for this engine, i personally prefer mobil delvac 15W-40
gear oil: toyota orignal GL4 75W-something
it will be a good idea to change power steering oil but it shouldn't be necessary, if you do make sure you bleed it properly and also flush all the old fluid out. it uses simple ATF Dexron II or III, ZIC ATF III will work or you can use toyota's own power steering fluid.