Neil - I've tried "MSIT Site Life Cycle Management v1.1" from that Codeplex site and it appears the package is incomplete & unable to install (I'm not the only one according to the discussions there). Not sure how it works, but I wanted control of the notifications so that I see which sites it's about to remove before it does it.
Andy - I've tried PinPoint too - but it only goes as far back as 30 days and up to 99 sites - kind of limited. Thanks all the same though.