I've been to Winchester Cathedral and it's well worth a visit in my opinion... unlike Salisbury, the people don't seem to mind you taking photos as long as you don't leap around and make a huge fuss kinda thing
I would say the best thing to do is to google 'things to do around Winchester'.. I've been there a good few times but not to take many photos - there is a lovely stream / river very close to the center and you can take some gorgeous photos of the gardens there..
There's a fab pub very close to the Tourist Information center -on the corner of the street.. not sure what it is called.. it's a chain pub though, cheap grub and really huge!
-------------------- "Success is the ability to go from failure to failure without losing your enthusiasm"
- Winston Churchill