Is it difficult to build?
building a PC is very easy.
1. i assume you want primarily to play videogames. you start by deciding on a budget. based on this, you buy a set of components which have to be competible, and of the same "rank". no sense having a superb GPU if the CPU is crap, etc.
2. you pick a monitor resolution. the higher the resolution, the harder the GPU has to work. next you read some reviews of monitors.
3. once you have picked your monitor, you buy the GPU.
speaking in very broad terms, people tend to go for NVidia, with the 1080, 1070, 1060, or 1050. NVidia tends to have a slight technological advantage which means more power at the same cost, although AMD has some strong contenders at a lower cost range.
you will probably settle on a 1060 or 1070. The 1070 is higher range and you don't really need it unless you go for high resolutions and high refresh rates on your monitor.
4. then you buy the CPU. again, in broad terms, people tend to go with Intel, because of a clear technological advantage over AMD, and also their CPUs tend to have a higher resale value.
here you have some choice; you can buy the "consumer-standard top of the range" which is the 8700k, which is an overclocking CPU, and you need to factor in about another $30 for a aftermarket cooler, and a Z-series overclocking Motherboard. Or, you can buy the cheaper and perfectly functional 8400, which does not need an aftermarket cooler, and can use a cheaper motherboard.
there's also some in-betweens here, and AMD also has some reasonable offers.
5. at this point you have monitor, GPU, CPU, and mobo; you need a SSD (you will most likely buy a Samsung EVO or a Crucial MX300) at least 500Gb in size, a power supply (likely a Corsair or EVGA around 550~650W, gold+ rating), and a case, likely a Fractal Design, or Corsair, or NZXT. You will also need some RAM from Corsair, probably some Vengeance 3000 because they don't really cost much more than the 2400.
6. everything else you need is in the boxes with these components. you open the boxes, and read the instructions. every piece only plugs into one socket, you cannot plug something in the wrong socket because nothing fits anywhere that it isn't supposed to go.
7. get someone else to make you a Windows 7 install disk on a USB stick; stick it in the USB2 port. Start the PC, press [Delete] several times, until it goes into BIOS. Select "boot from USB".
wait.
8. download Avast, install Steam, and start playing.
i also recommend you invest in a decent mouse, a XXL mousemat, and if you are Pr0 1337zor also some headphones. And a decent chair.
