Get a case such as the Cooler Master Haf x, and get a quality power supply from a brand like: Corsair, seasonic, or antec. 600watts should do. Also for a hard drive just get a 1tb western digital, or a 1tb seagate. They are pretty affordable nowadays. Also for a cpu cooler you might want to get something like a noctura DH-D14 which should let you overclock it a bit.
Hope this helped!