Wiring Diagram Drawing Software

Can anyone recommend a good program for drawing professional looking wiring diagrams ?

Rapid Harness is very useful for wiring detail design and construction. If you want to draw layout diagrams, I've been successful with OpenOffice Draw, and importing images of connectors. This is similar to the Microsoft Visio software that is also often used for that task.

Here is an example (it was intended just for my own use) of one of my harness layout drawings made with OpenOffice Draw:

Seems most folks at the hobby or club level use Microsoft Visio and/or Microsoft Excel. There are other paid options but some are very pricey and are really geared toward OEMs or professional race teams.