What tool can I use to build a nicely-formatted SQL DB diagram on a Mac?

I need to create an entity relationship diagram for a MySQL database. It doesn't need to be automatically generated or anything, and I don't have foreign keys defined anyway.

I could swear that I once used a tool that would display the relationships between fields, but this old screenshot from MS Access is the 开发者_Go百科closest I've been able to find to what I'm trying to do (source: http://acdrupal.evergreen.edu/files/studycenter/database_entity_relationship_diagram.jpg).

Can anyone name an app (preferably for Macs) that can be used to build this kind of diagram? I've tried several of the popular ones - ArgoUML, OmniGraffle, MySQL Workbench - but it doesn't seem that any of them will show those relationship lines from one specific field to another. Instead, they have a generic one-to-one or many-to-one line that goes to the table, but not the specific field.

http://www.malcolmhardie.com/sqleditor/

This looks like it supports it if I understand what you need

i like Visio for these drawings.