I previously posted the "Salesforce Attachment Downloader" that allows you to download attachments and apex pages rendered as PDF, convert them to PDF (using open office). You can also combine those files further - into two levels (say accounts and divisions) using the where clause in the SOQL search.
I have updated the program to fix a issue with PDF rotation in the combined files, added some more error checking / boxes, and added the ability to import and export the presets to a XML file.
The update can be found at the same location as the original program.
Contact me if you notice any other problems.