I have read that before downloading sp3 computer users should disable their AV, but quite a few of us still have automatic updates enabled so won't have time to do this. I was wondering this: having auto updates, I would have thought I have all of the updates that are in SP3 - if so why would I want SP3; will the updater recognise this and not try to give me sp3? To say I am a bit worried is an understatement. At present people can choose whether or no, but I believe after 10 June it will be forced on us.
edit: of course after writing this I saw the preceding post about what to do before downloading, but I think my point about auto updates is valid.