I am building a PC meant for gaming also as a source for movies and music.
Have a look at the config:
MB Gigabyte GA-B75M-D3H 32GB DDR3
CPU Intel Core i5-3470 3rd Gen
SMPS Corsair Gaming Series GS600 80 PLUS Certified
Case NZXT Gamma Mid Tower
GPU Gigabyte AMD HD 7850 OC...