Engine belt changing things to do on a 2.0t?

Right Boys and Girls...am gonna have the bus's bumper off later next month and thought feck it...while I am in there I might as well change the cam belt, water pump, serpentine belt etc as I am not sure I believe they were done by the previous owner when he said they were. Is there anythin else I should be looking at changing over? Is their a chain tensioner at the back of the engine that needs replacing too? I have read some posts about belts or chains at the back of these 2.0t engines which don't make the engine any less rattly. Is the cam belt tensioner up for changing as well....could do with some feedback, as if I do this...I don't want to be touching this ****** engine again for at least twelve months! hahaha Part numbers and description would be really helpful. BTW Car has done 192,000kms. 2.0t 200bhp engine. Cars running well at moment and oil an filter done every 6,000 mile and recently done plugs, all filters, dv, thermostat.

Cheers
A

Thanks for the replies...the thermostat was done a few weeks back.....is there not stuff at the back end that needs attention though?

BR
A