Monitor Suggestion For New System

Recently built a new skylake 4.0 system, 16GB ram, 500GB SSD, and stuck with integrated video for the time being. I'm currently using a very old 19" Dell square monitor and would like to replace it, but have no idea what would be the best solution. At the moment there are some seriously crazy shopping deals and I would love to cash in on one. This monitor will be used for a little bit of everything, movies, reading, and occasional gaming included. Also thinking of mounting the replacement to the wall to gain some desk space as my desk is tiny. Here's the 3 options I'm looking at and would love any input you guys have to give me.

1 - LG 34UM57 34" ultra wide
2 - 27" IPS (have no brand/model in mind yet)
3 - 42" + 4k HDTV (samsung, sony, vizio, ?)

I will probably get a video card in the future, but for now I need to upgrade off this 19", it's killing me slowly...

 

A 24-27" 16:10 IPS would make a good all-rounder, ultra wide's are more movie/gaming oriented (lacking the extra pixels in height that a 16:10 has) and needs a mid-range GPU for gaming, 4k takes a lot of driving at native resolution, maybe ok for movies but gaming will require a high-end card or a big reduction in resolution (windowed mode?) and low-mid quality settings.

 

I have a full 4K rig with a 30" freesync monitor and a 4K 75" TV.
I game at 4K, but with reduced settings. The freesync prevents stutter and tearing very well. I love it. We are talking over $1,000 in your GPU(s) to make this work. I run a ProDuo, if you run duel 1080's get the G-sync version monitor. Display port is pretty much your only option as the other connections have issues.

We have 4K TV, but watch movies at 1080P because at 5 feet away we cannot tell a good 1080P movie from a 4K movie. Sorry to say it but 4K even at 75 inches is just not necessary.
That being said, the smart upscale of our 4K is noticeable. Running a 1080 P movie raw and upscaled shows a noticeable improvement.

 

This is not quite as big as what you stated, but it's a bargain now at current prices.
I've had one for about a year-and-a-half. The screen is very bright at factory settings and should be reduced to about 40% or below.
This is 16:10 with 1920 x 1200 resolution.

http://www.anandtech.com/show/5550/dell-u2412m-16-10-ips-without-breaking-the-bank

https://www.amazon.com/Dell-UltraSh...ie=UTF8&qid=1428727279&sr=1-1&keywords=u2412m