Basically the same as a 40K service but with a plugs change. Can be pricey!
£549.54 at Lexus Guildford where i purchased my is200.
air, oil filter, screenwash, spark plugs, drain plug gasket and oil. The cost also included the M.O.T.
i was under the impression that they did the cam belt at 60k as well, thats very expensive for just a "standard" servicing