Doesn't take much to connect a mechanical keyboard (assuming you meant keyboard not keyword) to an iPad. And the keyboard shortcuts on the iPad are becoming much more powerful.

You can of course connect an external monitor to an iPad, but not a lot of applications are taking advantage of this ability yet (for extended screen space).

But realistically, iPad won't be ready until they support the mouse due to "gorilla arm" as it's called. Getting the iPad to eye level for proper ergonomics require a lot more effort to raise your arm to interact with the screen.