Some nights I find it takes to long to get dark adapted to find and frame the next target for astrophotography. So I put together a low light B&W video camera and 2 1/2" LCD screen. The video feed also goes into my laptop via a USB TV tuner.
The camera is a GSTAR-EX with a 6 to 60mm zoom CCTV lens. The sensitivity is amazing.
When I get the suitable adapter I will mount a Tokina 24 to 200mm so it can also be used for autoguiding.
Here is a small video
http://users.bigpond.net.au/avandonk/OCtoCRUX.wmv
The following pictures I hope are self explanatory. All the screen pictures are what you see in real time.
The third picture is the actual 2.5" lcd screen.
The last two were through a 100ED.