Network graphics tools

["Howard C. Berkowitz" <hcb () gettcomm com>]

Much of the enterprise market seems wedded to Visio as their network 
graphics tool, which locks them into Windows. Personally, I hate both 
little pictures of equipment and Cisco hockey-puck icons; I much 
prefer things like rectangles saying "7507 STL-1" or "M160 NYC-3".

Assuming you use *NIX platforms (including BSD under Mac OS X), what 
are your preferred tools for network drawings, both for internal and 
external use?  I'd hate to be driven to Windows only because I need 
Visio.