First of all you need a motherboard/ chipset combination that can deliver the performance you want and isn`t too expensive. Then you need some internal memory to speed things up. I recommend for the configuration below 4 Gb of DDR3. More is not needed for a budget self build and less would bring down performance too much.
Then you need a HDD or SSD. Fortunately today the SSDs have become increasingly cheaper and for a budget build desktop you can get a 128 Gb SSD for a reasonable price. That is why I have selected it for my setup below. It just boots so much faster than a normal HDD that I think is worth the money. Ofcourse you can always use a HDD yourself if you have one laying around or want to spent less money.
To put everything together you need a case and a power supply. For this selection I have gathered low price but quality products.
Here is my recommendation for Best Budget Self Build Desktop 2015 Build
It costs about $360 without software. For software I choose Linux Mint myself because I like Linux and now how to work with it. You might like Windows 8.1 better but that adds to the price.
|Processor||Intel Pentium G3420|
|4 Gb Mem intern|
Crucial DDR3 4Gb
(you can also get 2x 2 Gb)
|Solid State Drive||Crucial M500 2,5″ 120GB|
|Case||Rosewill Micro-ATX Mini Tower Computer Case with Dual USB 3.0, Dual Fans|
|Power Supply||StarTech.com 300 Watt ATX Replacement Computer PC Power Supply ATX 300|
|If you want to add Software|
I recommend: Windows 8.1 or