Building dekstop pc

Hello, i'm building my own gaming PC. List of the parts:
Processor: AMD Phenom II X4 955 Black Edition

VGA: AMD Radeon Sapphire HD 5850 1024MB

RAM Memory: DDR3 16GB (2x 8GB) 1600MHz

Motherboard: Gigabyte 970a-d3 AM3

Psu: PowerX3 Pro Edition 800W Psu

Hard drive: WD HDD SATA 500GB 7200RPM 6GB/S/16MB

Case: Enermax LuxuRay ECA-3190Series

Monitor: LED Samsung S22B300B


Logitech wireless mouse and keyboard.

Since it's my first time building custom gaming pc, i want to know if the parts are right? Will i'll be able to use my pc with this build? Also if you got any suggestions tell me. Early thanks.

This website is not affiliated, owned, or endorsed by Microsoft Corporation. It is a member of the Microsoft Partner Program.