Useful formats for the results of a database "audit"? My company has tons of disparate databases - Oracle, SQL Server, and (shudder) MS Access - lying around, and the CIO wants to bring in a third party to track them all down and document them. But, rather than having them just give us a big ole ERD, my manager (who is writing the project's requirements) wants to specify that the findings be given to us in some useful format. We were thinking Visio, but that's just a big ERD that's zoom-able. Any suggestions?
ER-Assistant. Great ERD, very small and compact. 620Kb total. Its basic plain black/white ERD's but some like that. 

Its free and uses Crows foot notation, but windows only. 

http://highered.mcgraw-hill.com/sites/0072942207/student_view0/e_r_assistant.html

Another popular choice is Workbench from my research. Here is the link.

http://dev.mysql.com/downloads/workbench/5.1.html