So I've had this exact computer for a long time now. I believe that I purchased this bad boy about 6 years ago (maybe 5). Anyway, it can't play Civ 5 on full settings without sounding like it's nearly about to blow up after an hour (civ is not a game you play for only one hour).
I was wondering if any of you wonderful people have any tips on how to make this build better now (spending no more than $400)? Or, alternatively, if there's an entirely new computer that I can build from scratch for under $800 and have it be a serviceable one? If I have to spend more than $400 to greatly upgrade the current PC, I would rather build a new one so that I can have both (meaning I'd need a new case; I would not need any monitors [unless windows 8 OS], keyboard, mouse or speakers though).
To properly begin a new build post:
Budget:
~ $800More specific use (what games, what programs):
Civ 5, Civilization: Beyond Earth (coming soon), future games.Planned time until purchase:
Would like to do it now, unless there's something great coming out within a couple of weeks that would be worth holding out for in my budget.Do you need an Operating System?:
Yep.Do you have any specific preferred components?:
Nope - just ones that will last long.Do you need a sound or wireless card?:
I don't believe so, but if someone could elaborate it'd be appreciated.Do you want stock cooling or do you plan on overclocking?:
I do not plan on overclocking.Do you need a monitor? mouse? keyboard?:
I do not need any of these; however, I would like to be able to use three monitors at once. My current build has three inputs, so it is physically connected to two monitors + a TV at the same time... but I can only have two working at the same time. I would like to have the option to duplicate/extend among three different screens at the same time, if possible. I guess I should actually add that if Windows 8 is the preferred OS to build on now, I would like one touchscreen monitor, and the budget can be adjusted to include that.Zip code/location? (Shipping costs):
07922, and I have no problem picking up parts in stores (I've been told by users here that I am in an ideal situation to pick up parts in store).And then a picture of my current build:

Thank you for your time and help :D! I will gladly donate to the person whose build I choose (hope you have paypal - fg is a no go as you can see).