New Build (advice+help needed)

so i wanted my build to be within 375-450 at max and these are the parts please give me a mobo (i didnt include optical drive cuz i have one) :

FX 6100 Black Edition 3.3GHz Six-Core Socket AM3+ Boxed ProcessorFX 6100 Black Edition 3.3GHz Six-Core Socket AM3+ Boxed Processor --- 109.99 @ microcenter

G.SKILL Ripjaws X Series 8GB 240-Pin DDR3 SDRAM DDR3 1866 (PC3 14900) Desktop Memory Model F3-14900CL10S-8GBXL ----- at 57.99 at newegg

MSI N640GT-MD2GD3 GeForce GT 640 2GB 128-bit DDR3 PCI Express 3.0 x16 HDCP Ready Video Card ---- at 89.99 

or

R7770-PMD1GD5 AMD Radeon HD 7770 GHz Edition 1024MB GDDR5 PCIe 3.0 x16 Video Card at 120.99 with 20 dollar rebate so 101.99

Rosewill R218-P-BK-450W ATX Mid Tower Case w/450W Power Supply - $50.50

500GB 7,200 RPM SATA 6.0Gb/s 3.5" Internal Desktop Hard Drive - Bare Drive --- $50 at microcenter

total = 375 

(This is if i purchase the 7770 gpu)

Do not skimp on the psu. http://pcpartpicker.com/p/Ung0

i will upgrade in the future but for now it fits budget