Although some of you may know this, but I just recently stumbled upon the PeopleSoft Diagnostic Framework on MOS. It is a great took for analyzing underlying information for particular transactions within PeopleSoft, e.g. Payment Related, PeopleTools etc. Here is a link to a document on MOS that outlines a complete list of Plugins available for PeopleSoft by Module.
Although, reports do not look as pretty or as dynamic as I would like – PeopleSoft did a great job on this one. It was a breeze to install and makes information research and troubleshooting so much easier.
PeopleSoft Diagnostic Framework (DFW) Plug-In Catalog [ID 1215308.1]