Hello Rick,
I am in no way an accomplished astrophotographer as some of the guys here, but I believe that my experience could be of some help to you.
Although what Roland says is absolutely true, I would begin with a one-shot color camera. I did that (I started with an ST-2000 XCM from SBIG) and I don't regret it. After practicing a bit with that camera and solving some of the problems related to astrophotos, I decided it was time to go into the B&W and bought a mono camera and filter wheel. I'm still fighting my battle with this camera and all the additional problems related to capturing (a lot more time needed for the same object because you have to shoot through all the different filters, usually LRGB) and processing (because you simply have at least 3 times the quantity of shots you would have with a one shot color camera) but I'm now enojoying it more because some of the problems I already solved with the previous simpler camera.
So my advice is: get accustomed to all the issues and problems of astrophotos with a simple camera, shooting many short exposures, as Rolands suggests, to dispense with the problem of guiding, which is a handful by itself, and then slowly move on to different more challenging cameras that involve more problems, but also give you more satisfying results. Luckily, this hobby has a good second hand market for just about all items, basic and semi-pro, so, by the time you grow out of whatever camera you decide to buy (and trust me, you will) you can always sell yours and buy a new or used one
Hope this helps.
Ciao
Luca