A:AnswerThe only cord that comes in the box is a power cable. In my experience, I found it necessary to purchase a Mini DisplayPort to DVI adapter cable to connect my HP 23" monitor to the Mac Mini via DVI cable. I use Apple's Bluetooth wireless keyboard and mouse accessories. To set up the Mac, it is handy to have a USB connected keyboard.
A:AnswerThis is not really relevant because you never need to completely shut it down. Because of its sleep mode it only uses just enough power to retain the contents of the memory.
A:AnswerI'm using a Westinghouse TV as a monitor (using HDMI cable) because my old Westinghouse monitor (multi pin plug with 2 screws) would not connect to it. HP Photosmart 6520 printer / scanner and Logitech Bluetooth mouse and keyboard. No problems with any of them working with the Mac Mini.
A:AnswerTo save space and to help drive innovation (faster internet speeds, etc.).
Also you can buy an LG or Samsung CD/DVD burner for cheap these days.