Along with the Smart Cover, I also bought the 10W USB Power Adapter that includes a 6-foot-long power cord. I can use the iPad while charging it without having to pull out an extension cord. I put it in a drawer in the living room right where I'll plug it in when needed. Perfect! 😀
You forgot the Digital HDMI adapter as well as the Dock Connector to VGA adapter as well as the extra power adapter...
That being said, I am just reusing my red smart cover from iPad 2 as well as the above accessories. I did buy a camera connection kit but have yet to use it.