I have go thru the compatible hardware list.
1) I need GC100 as interface with the core
2) Lighting Control - X-10
3) For security. Can i use x-10 Wireless Security system such as : Protector Plus and Monitor Plus?
Please help me.
Well, you don't need a gc-100 just to control the CM11 (X-10 controller), but maybe you want/need the other functions as well. I have no experience with X-10 security devices, I think it's supposed to work but I wouldn't be surprised if it needs some fixing.