I am not sure how well optimized ESO, but however from what I figured it is most likely way better than something like WoW which is just straight out awful, and yes windows 7 is the safe bet to met at least. Windows 8 was made with touch-screens in mind, so not really satisfied by how it is to use.
Those parts you chose generally will do well. I personally would invest a bit more and get a z-87 board (it has additional bells and whistles and gives you the chance to overclock later on, if wanted) along with 4670k (slightly faster, overclockable CPU and also quad-core like yours).
Yeah, pretty much any led screen of your choice will be decent and I have high-trust when it comes to benQ myself, never had any issues with their screens.
Anyway: For mmo-s I would definitely stay with intel, just to be sure. The 4440 I am not super familiar with, however it is slightly slower (and of course cheaper) than the more commonly used I5 4670k which has the option for an overclock (which you could do once you have money for a better CPU cooler and maybe when it is needed in the years to come)
The motherboard you chose seems decent, if that is all you are really looking for, surely someone else can give their opinion if it differs, but as a rule of thumb I'd avoid any boards with VIA audio chips. Just, no.
- - - Updated - - -
I assume you've got an optical-drive in your laptop which means you can create a bootable USB to install your windows from, so no drive is needed. I never use that myself, the AMD system I posted earlier is pretty much the best one for the money you can get. The CPU (at least most likely) will increase in performance after developers start to utilize those additional cores.
How to create a bootable usb-drive for windows:
https://www.youtube.com/watch?v=aFJwiILbsdo
Haha. Yeah the tools you may need is a bit overwhelming when you start building a system, but all you need is just your basic screwdriver.
Edit: Did some additional researches and did stumble upon this statement ''So from what I saw (which was the same observations you made) is ESO clearly needssome additional optimizations for CPU usage when too many players or structural content (towns) is on screen . Both are causing questionable frame rate drops driven purely by the CPU and yet the CPU isn’t reaching 100% maxed out usage. So there is definitely a performance issue there.'' - Hereby I wouldn't recommend going with an AMD based system at all.
Thus your build is fine, you can swap the case to the FD define r4 if you wish to and go with I5 4670k (and the same board, or upgrade to z87 based one for further overclockability [Is that a word?])
Also!
This is the card I meant:
http://azerty.nl/0-5829-648623/asus-...-grafisch.html
Appears to be quite a bit more expensive than the 7970 (didn't even know they sold those anymore), however it is also the faster card out of the two and surely stays cool and quite (if you like quite optimization)