I have worked with Aris Toolset and IBM SPSS PASV Modeler (previously SPSS PASV Modeler, née SPSS Clementine). I don't know what your requirements for documentation are, but I found that these tools hid far too much information within the nodes and did not print it out. And in the end, processes need to be documented in print. "Tucking things into boxes" only means that instead of one huge A2 or A0 sheet, you get to deal with binders of A4 sheets, which is no improvement.

If you want a graphical ETL tool, I pointed you to the tools that you need to stick together to create such a thing with Perl as the backend. If you want to play buzzword bingo and tell us that you're now getting paid for playing with ETL tools, maybe you want to visit http://etlmonks.org instead?