Additional Comments: Running games like Shogun 2, preferably a quiet PC and with good airflow so it doesn't overheat. I would like a motherboard that can support an upgrade to a i5 or i7 in the future from the 3rd gen for future use.
And Most Importantly, Why Are You Upgrading: Brother and his friends have some and i would like to join them in paying their games. I have spare parts that might as well be used
Processor and motherboard are most important parts of a PC and has to be upgraded at a same time. Motherboard depends upon the compatibility of processor socket.
However i have added a Z77 mobo that will enable you to upgrade you processor with a I7 or Xeon or I5 .
Processor => Intel Pentium G860 3.0GHz Dual-Core Processor - $65.99
Mobo => ASRock Z77 Extreme4 ATX LGA1155 Motherboard - $124
Ram => Corsair 8GB (1 x 8GB) DDR3-1600 Memory - $34
Storage => Western Digital Scorpio Blue 500GB 2.5" 5400RPM Internal Hard Drive - $54.84
Graphic card=> Sapphire Radeon HD 7870 GHz Edition 2GB Video Card - $229.98
PSU => Corsair Builder 500W 80 PLUS Bronze Certified ATX12V Power Supply - $39.99
OS => Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) -$89.98