Hello everyone, this is my first post here. Well, two years ago I bought a ready-made PC which had a decent CPU, but a very low-profile video card which doesn't even meet the minimum requirements for some 2012 games. Now, if I find a good Christmas sale, I might consider changing it for a newer one. But my worries are, will my PC "suffer" much by getting a more powerful video card? If so, would I need to replace my power supply? I'm considering getting another Nvidia card not surpassing the 200$ price limit. This is the more exact hardware information I can give about my machine, will it "tolerate" video cards like GeForce GTX 760 without additional changes? Thanks in advance.