Sheridan – It depends on exactly what you want to do and what focal length of optics you’ve got. A lot of current CMOS cameras have small pixels so that might not be ideal if you have a very long FL although you can always bin them. Most are now based on Sony Starvis sensors which are very good. I use ZWO cameras so I would suggest having a look at what they have available. The 585MC would be a good place to start. It can be used for deep sky and planetary, has pretty high frame rates but is also able to take the longer exposures you would need to show deep sky objects in real time. The ZWO software suite includes software that can real-time stack images too.
British Astronomical Association
Supporting amateur astronomers since 1890