Help In Streaming

Hey guys im relatively new to this exact idea and wondering if im going about it the correct way.

Basically i want to be able to wirelessly stream Video/Movies around my home as i have 2 tv's.

I also want to manage my Hard Drive Wirelessly from my laptop to update it when i am adding to my library.

I would like to keep this as wireless as possible.

My ideas were the following

A wireless hard drive, that i can edit over laptops etc - Have the hard drive hard wired to something like apple TV or a ROKU box - have that wired into one TV.

This cover 1 tv is this would work, but the other tv i am unsure how to get that to connect up. If thats wireless would that be able to connect to the roku/appletv box?

Help needed

Thanks

Ginge