4 year old PC, want to build new PC with similair/slightly better specs.

Approximate Purchase Date: In the coming two weeks.

Budget Range: This is tricky, My PC from 2010 was bought it England, I am now living in Chile but still searching US suppliers for ballpark figures. Ultimately unless by chance there are other Chileans here with a keen eye for these things I'm happy to work from American build sites and prices and do the price conversions on my end using the Chilean parts sites etc as I will be buying all locally, but for all intents and purposes I'm happy to work in USD/US Sites for the build and then make amendments later if the price difference in Chile is astronomical. I'm probably looking at $600/700 just a tower no peripherals. Ideally less, But we'll see.

System Usage from Most to Least Important: Gaming, above all else, I'm currently happy with my 3~ year old/$1200 PC in terms of performance and while I do have some questions/concerns I don't think I need more performance than I currently have. I mostly play EvE, LoL, WoW, Diablo 3, Starcraft 2, Path of Exile, and a variety of Valve FPS titles and some GTA/SR/Skyrim. Without any complaints.

Are you buying a monitor: No, I will be using a 20-22inch 16:9 widescreen monitor most likely.

Parts to Upgrade: Like I say, it's a new build looking to mirror the current capabilities of my old build, I think ideally slightly more graphical output could be useful, but honestly I don't find my PC lacking in any of the games I play, however that said I currently sit at 1680x1050 and have the feeling I may take a hit in many games if I bump it up to the "standard" 1920x1080 or 1920x1200 people seem to prefer?

Do you need to buy OS: Yes, but the cost there in depends, I want to focus on the build for the price above first and then decide on OS issues, so for the budget it's a non issue, with the hope to come in under budget to facilitate an easier time with the OS/peripherals.

Preferred Website(s) for Parts: As said, there are a variety of sites here in Chile, and likewise I will be sending off my specs to a few "freelancers" as well, so any american site is fine for ballpark figures.

Parts Preferences: by brand or type: None, a decent standard and reliability is all I ask, no favourites, never been let down by what I have now or had in the past, which varied over the years.

Overclocking: No

SLI or Crossfire: No? if theres some money to be saved for the same performance without any negative consequences then sure. But I don't know if that's the case.

Your Monitor Resolution: 1680x1050, may consider upgrading but not sure if there's any need, I've yet to be failed by my trusty 1680x1050 but the possibility to hit 1920x1080 or 1920x1200 might be worth it, but may drive the requirements up too much price wise?

Additional Comments: Ideally not prone to over heating, so cool running, noise isn't a huge problem but obviously I don't want a Diesel motor under the desk. I mostly play EvE, LoL, WoW, Diablo 3, Starcraft 2, Path of Exile, and a variety of Valve FPS titles and some GTA/SR/Skyrim. Without any complaints on my current set up, and would like to keep that as my standard if not push it a bit higher. For the most part I am into Online Gaming more than single player AAA titles so in many ways that has seemed to keep my slightly dated PC perfectly relevant in the online gaming field.

And Most Importantly, Why Are You Upgrading: I want to have 2 (maybe 3) in the house so I have my dedicated set up and one or two for the kids/visitors that all function at roughly the same level to keep everyone happy, and likewise a tried and tested set up that I know works for the games me and my friends enjoy here in Chile so I can recommend the same to them and they know exactly what they are getting and can test run anything on my PC first.

Now my current set up is as follows: (minus the case and peripherals) I think the biggest issues with me for the new build are firstly the HD, 1TB would be nice, and possibly a more "powerful" graphics card. The DVDRW is a case of the cheapest is fine, likewise memory card reader isn't important, nor any high quality sound system as I most likely just plug in a cheap headset. And as long as I have 4~ USB ports I'm good on that front.

As stated, my main goal is to match this systems performance in currently available parts, or surpass it slightly in some fields depending on the prices. So ideally a "identical" build with relevant parts would be great so I can source the prices here in Chile, or likewise builds of similar or better quality that I can source here would be a great help.