Is kingwin Psu good?

What are you buying for and what is your budget? If you need a 650w unit you should not even be considering lower end units. I'm sure we can find you a good deal though as there are a lot of great units on sale right now.

So post your complete specs and I will be glad to find you some good units as cheap as I can.
 
CPU: AMD FX-6300 3.5GHz 6-Core Processor ($109.99 @ Amazon)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.98 @ OutletPC)
Motherboard: ASRock 970 PRO3 R2.0 ATX AM3+ Motherboard ($72.55 @ Newegg) /ASUS M5A97 LE R2.0 AM3+ AMD 970 SATA 6Gb/s USB 3.0 ATX AMD Motherboard with UEFI BIOS
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory ($59.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($59.94 @ Amazon)
Video Card: 7950
Case: NZXT Guardian 921 RB ATX Mid Tower Case (60)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply - this good? :)

Thank you for the replies :)