My main concern is if the PSU I might buy will work for the entire system.
I also plan to try to unlock the 4th core.
CORSAIR Builder Series CMPSU-500CX 500W:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139018
MSI 870-G45 AM3 AMD 770 ATX AMD Motherboard:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130290
XFX HD-575X-ZNFC Radeon HD 5750:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150448
G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231274
ARCTIC COOLING Freezer 7 Pro Rev.2 92mm Fluid Dynamic CPU Cooler:
http://www.newegg.com/Product/Product.aspx?Item=N82E16835186134
AMD Athlon II X3 445 Rana 3.1GHz 3 x 512KB L2 Cache Socket AM3 95W Triple-Core Desktop Processor:
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103872
I also plan to try to unlock the 4th core.
CORSAIR Builder Series CMPSU-500CX 500W:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139018
MSI 870-G45 AM3 AMD 770 ATX AMD Motherboard:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130290
XFX HD-575X-ZNFC Radeon HD 5750:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150448
G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231274
ARCTIC COOLING Freezer 7 Pro Rev.2 92mm Fluid Dynamic CPU Cooler:
http://www.newegg.com/Product/Product.aspx?Item=N82E16835186134
AMD Athlon II X3 445 Rana 3.1GHz 3 x 512KB L2 Cache Socket AM3 95W Triple-Core Desktop Processor:
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103872