New gaming PC for December 2013 for around $1000

[JezzyMC]

Hey guys,
I wanted to build a new gaming pc since I want to change over from console gaming. This is my first build and I have had a bit of help in learning the basics. I've chosen out most of the new hardware for my pc, but not sure whether they are compatible with each other. Here's the list:

• 
  CPU: Intel i5-3570k
  MoBo: Gigabyte GA-Z77X-D3H
  Memory: Corsair Vengeance Low Profile 8GB Dual Channel DDR3 Memory Kit (CML8GX3M2A1600C9R)
  CPU Cooler: Cooler Master Hyper 212 Evo
  Graphics Card: Gigabyte Radeon HD 7870 GHz Edition OC 2GB GDDR5
  HDD (for storage): Seagate Barracuda 2TB 7200rpm 64mbCache Sata3
  SDD (for OS): Crucial M4 128GB
  Power Supply: Corsair HX650
  Case: Corsair Carbide Series 500R White

- For the graphics card, I am not sure whether to go with a AMD Radeon 7870 OR an Nvidia GTX 660. I want a graphics card that will last me around three years before I change to a new one. I know the price difference is $50, but which is more worth it? Should I wait for the new graphics cards that are coming out soon.
- Also, I am unsure about the SSD and was wondering if there was a better/newer version that is cheaper. I want to run the OS on this.

Also, I was wondering whether I should by a separate thermal paste and I want to know the difference between the stock thermal paste that comes with the CPU cooler and a separate thermal paste.

I live in Australia so I am wondering if there are any local stores I can get the parts from. I'd prefer to get the parts from a store but I wouldn't mind getting it online as long as the site is trustworthy.

Thanks to all who contribute.

P.S. I am also new to this website do im not sure if i've out this in the right place.

 

[Wolfshadw]

A lot will likely change between now and December 2013. New processors, new graphic cards, new SSDs will be available. It's best to wait until you're ready to build before asking for advice.

-Wolf sends

 

[JezzyMC]

For future reference, should I base it on this build and should I use a separate thermal paste?

 

[Wolfshadw]

When the time comes, just start from scratch. If you were building today, you'd have a good build, but as so much is likely to change by 12/2013, just start with a blank slate.

While it's not a bad idea to have thermal paste available, you shouldn't need it off the bat. Unless you need to remove the heatsink after it's been installed or you intend to overclock, you don't need it immediately.

-Wolf sends

 

[JezzyMC]

When the time comes, just start from scratch. If you were building today, you'd have a good build, but as so much is likely to change by 12/2013, just start with a blank slate.

While it's not a bad idea to have thermal paste available, you shouldn't need it off the bat. Unless you need to remove the heatsink after it's been installed or you intend to overclock, you don't need it immediately.

-Wolf sends

Thank you for replying, I'll come back later when I have decided what I shall build.