* This might be the wrong thing to do, I've changed my mind on this a dozen
times. I think most people will want these, and I don't think it's a bad
thing to include it as the default setting - people can still go to
customise and unselect it. I thought most people would do custom and then
opt-in since most will want it, but I suspect (from watching people run
the installer) that most people hit typical, and so don't get these.