Will this Power Supply work for now?

I am building a new computer and have a Corsair Enthusiast 650 Watt Power Supply currently

The rest of the computer will be as follows:

CPU: I7 3770k
Motherboard: ASUS Sabertooth Z77
Memory: 16GB of DDR3 PC3-12800 RAM
Storage: 1 2TB 7200RPM Seagate Barracuda HDD
Storage: 1 128GB Samsung 840 Series SSD
Disc Drive: ASUS Blu-ray Writer
and it will have at least 5 things connected through usb including the wireless keyboard, mouse, and game controller.

The Case I will be using is Thermaltake Chaser mk-1 Full Tower Case and will have some fans that come with it.

This is the video card I am using,

Will the 650 Corsair Power Supply I have work for that setup?

I intend to upgrade the power supply in a few more months so I could crossfire a 2nd card in, but was hoping that I could make due with what I already had for now.

Update: Thought I should add in by saying that there will be absolutely no overclocking going on apart from what has been done before purchase in case that makes a difference on power consumption.
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More about power supply work
  1. Best answer
    Radeon HD 7970 - On your average system the card requires you to have a 550 Watt power supply unit.So your fine.
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