Guys need some help, I am new to this NAS stuff.

My external USB HDD casing just died, HDD and data inside still ok.

I now like to find a new replacement HDD casing with below criteria:
1. Can be connect by wifi, which mean I can setup anywhere in my house as long as access to AC power socket and same wireless router; no need close to PC (by USB cable) or router (by LAN cable).
2. Usage: personal use storage, torrent, streaming 1080p video file thru wireless (local only, not internet)
3. Access from other places thru internet is a plus not a must, my screamyx upload is like shyte anyway.

Please recommend me a HDD housing that can fulfill the above criteria, thanks.
Let me know if I am posting in wrong topic.