Hey guys, I'm planning on buying a Telescope, and I'm kind of new to the telescope world. I was wondering if I could get some advice on the kind of telescope I should get. What I do know is that: 1. I need the telescope to be able to track different celestial bodies (needed for the photography) 2. Can adapt an SLR camera to the eye-piece (I believe it's called a T-Adapter) 3. On board computer or the ability to connect to an external computer (PC) 4. These features come with or can be added to the telescope. Really what I want is something relatively inexpensive and easily upgradeable. Also if someone could explain T-adapters and T-rings, that would be great! Thank you for your help