I enjoy building my own computers and whenever I start a new project I load up the Newegg website to look for parts that I want. They have such a wide selection at very reasonable prices that I really don't have any need to shop anywhere else for parts. Just make sure that you get the part that you want the first time because it isn't always cheap to return parts that you decide you don't like later on, and you will probably end up paying a shipping and restocking fee.