You can build your own computer. As I am fond of reminding people, there are only 11 major parts in a PC. If you think you can connect just 11 items, then you can do it.
First, you need a good guidebook. Try mine. It’s called Building a PC for Beginners. It takes an easy, step-by-step approach, with every step detailed by photographs. It’s written in plain language, so you don’t have to worry about deciphering a lot of technical jargon.
Next, you’ll need to do a bit of shopping for parts. Here at Amazon is the best place. I searched out some of the best bargains.