This instructable will involve some research, there is no way around it. If you are the type of person who does not like to do research stop reading this instructable now, and buy a fully assembled computer. I am sure that you will be happy with a Small, Medium, or Large computer. You have to be happy with exactly the components that the company (a.k.a. the man) selected for your computer, and use all the connectors and components that you paid extra for!
Those of us smart artistic types build their own computers! Sure it will take some research to find computer parts that work together, but the experience will be totally worth the work because you will be so much smarter than those who stopped reading and bought a fully assembled computer. So bring on the research!
I use several web sites to buy computer components, such as New Egg, Tiger Direct, Mwave, and Amazon. If you know of other sites please leave a comment so we all can get a good complete list.
Use the different sites to compare prices and to see what different components are available.
This Instructable submitted by the Rabbit-Hole Maker Space as part of the Instructables Sponsorship Program.