Always change the cambelt, i do it even if i changed it a month or so before, Change the tenssioner as well!! (usualy a kit anyway) While thats off to the water pump and thermostat.
Also.. depending on how/why the gasket blew.. Have the head checked, if its noisy its a perfect time i slip a new set of lifters in there

If your into that kinda thing.. you can have a go at porting/polishing your head while its off. I painted my rocker cover a very nice silver while i had mine off.
Oh.. a new exahust and manifold gasket might go down well if its been disturbed
