There is a node (node_id=1005) called Changed Nodes which denies me (monk) permission, but you (friar) may have better luck.

ps - Good idea!

Also:
There's a great script called luke_repwalker.pl that shows you a certain kind of changed node. It reveals which nodes created by you have changed reputation since the last check. So when you login and find you have gained or lost experience points, luke will tell you exactly which nodes caused the change.