Yep, Telrad is a great accessory for a dob. I was getting tired of doing all sorts of weird contortions looking through the standard finder which came with my scope, having said that I haven't done away with the finder all together
But definitely the Telrad is great for quick finding.
Others may chip in but here's a handy link of charts which show the view through the Telrad rings, or basically Telrad finder charts, may be useful:
http://hotastronomy.com/2008/06/09/t...finder-charts/
(the charts are Northern Hemisphere biased so invert them for Southern skies)