I've finally got my a** in gear and bought a KVM switch box so that I can run an old pc for internet etc and my main computer will now be purely for audio.

The thing is, at the moment my Audio PC has had windows XP reinstalled and that's it. My question is regarding what I should/shouldn't install now. Is it a good idea to install XP service pack 2 and windows updates. If I do that I suppose I'll have to install Norton and Zone alarm etc which mean's I'll have to go on the internet.

What would you install? Would you bother with the likes of winamp and nero and crap like this or would not bother with going on the web?