Thanks all
Should work well when I decide on my guide camera and purchase it. While the Agent webcam is good - it's noticeably less sensitive than the Orion/QHY autoguider. There is an Orion in our club already, so I think I'll probably go for the QHY just to see the difference in the cable, if any.
Once I have that in hand then it's out huntin' Messiers!
(NO goto!)