Where to buy a gaming pc?

I'm thinking about buying one from Puget since they have a lot of positive reviews. Here's a Puget computer that I customized:

Case: Antec P183 (Gunmetal Finish)
CD / DVD Rom: Pioneer 22X DVD-RW SATA (black)
CPU: Intel Core i3 530 DUAL CORE 2.93GHz 73W
CPU Cooling: Gelid Tranquillo
Hard Drive: Western Digital Caviar Blue 500GB
Motherboard: Asus P7P55D-E Pro
Operating System: Windows 7 Home Premium 64-bit OEM
Power Supply: Antec CP-850 850W Power Supply
Ram: 2 x Kingston ValueRAM DDR3-1333 2048MB
Services: Warranty: Lifetime Labor, 1 Year Parts
Sound Card: Onboard Sound
Video Card: XFX Radeon HD 5770 1GB

Totaling $1544.92. Is there a store where I can get a similar quality computer for less? Also, around how much less would I spend if I made one myself?