Desktop Ram

CPUi5-4460With a base frequency of 2.3GHz and turbo of 3.4GHz, this sub $200 Haswell Refresh CPU gives you fast single-threaded performance with four cores for multitasking and rendering.
Graphics CardAsus Radeon R7 370Regularly on rebate, the Asus R7 370 is my choice at the time of this post for $149.99.
MotherboardASRock H97M PRO4ASRock gives you a lot of value for the money you spend. Since we don't have a lot to spend, they're an ideal choice.
MemoryCorsair Vengeance 2x4GB DDR3-1600 MemoryCheap and reliable ram. If it's not available for $45 to $50, find something similar. I also like the G. Skill Value and NS 1600 Memory.
StorageWestern Digital Caviar Blue 1TB / Optional Kingston V300 120GB SSDTo make this build around $550, we only have $50 for our Hard drive. If you're willing to extend it to $600, you can get a 1TB drive in the WD Caviar Blue as well as a 120GB Kingston V300 for your OS and most important programs.
Power SupplyCX 430Modular, 80 Plus Certified, and a fairly reliable brand in Corsair.
CaseSilverstone PS08A solid micro-ATX with an appealing look, included 120mm front fan, and solid feel all around.