My specs are:
Processor: Intel Core i5 4430 Haswell 3.0GHz
Motherboard: Gigabyte GA-H87-HD3
Memory: G.Skill 2x4GB DDR3 1600Mhz SNIPER Edition
Graphic Card: Sapphire Radeon HD 7770 GHZ Edition OC 1GB GDDR5
Hard Disk: Western Digital Caviar Black WD1002FAEX 1TB SATE III
Optical Writer: LG DVD+RW GH24NS x24 Black SATA OEM
Power Supply: Antec Basiq 450W Active PFC 12cm PSU VP450P
Case: Thermaltake V3 BlacX Edition Middle Tower Series Black Case
My budget is around 300$