Ally1976

Hi, I am looking for some advice on buying an IS 200. What things to watch out for and things to avoid. My budget means I am looking at about £5K which, going by the Autotrader would get me a 2000 model with 100k on the clock. I am thinking that with it being a Jap-mobile with FSH and a years warranty I should be ok? Is this wishful thinking or are there some serious issues to contend with i.e. cambelt change etc? Any advice is greatly appreciated. Cheers