The best gaming pc for under 800. Pre built

Solution
Update:
If you're willing to put it together (it can be really rewarding and it's not as hard as many think), I came up with a really great PC for the budget:

$757 PC: http://pcpartpicker.com/p/2CAub

Included:
- 1920x1080 monitor
- FX-6300
- GTX650Ti graphics (2GB of VRAM)
- 8GB DDR3 memory
- Windows 8.1 64-bit
- Micro-ATX case, and micro-ATX motherboard

NOT included: keyboard and mouse (pick your own)

WHY I chose these parts:
I tried to build something with good QUALITY, that allowed a FX-6300 CPU, 8GB DDR3 memory and also a good graphics card. The FX-4300 is almost as good currently, but the FX-6300 has SIX cores and future games will benefit from these much more.

I don't see any compatibility issues (graphics card uses 1x6-pin...
You should also consider buying the monitor and pre-built separately to expand your options. There are also some really great USED systems around.

$600 is too low when including the monitor. $800 is probably the minimum. Assuming United States, I'll see roughly what's available.

Concentrate on:
1) Best graphics card
2) FX-6300 CPU (probably best value)
3) Customer reviews
 
Update:
If you're willing to put it together (it can be really rewarding and it's not as hard as many think), I came up with a really great PC for the budget:

$757 PC: http://pcpartpicker.com/p/2CAub

Included:
- 1920x1080 monitor
- FX-6300
- GTX650Ti graphics (2GB of VRAM)
- 8GB DDR3 memory
- Windows 8.1 64-bit
- Micro-ATX case, and micro-ATX motherboard

NOT included: keyboard and mouse (pick your own)

WHY I chose these parts:
I tried to build something with good QUALITY, that allowed a FX-6300 CPU, 8GB DDR3 memory and also a good graphics card. The FX-4300 is almost as good currently, but the FX-6300 has SIX cores and future games will benefit from these much more.

I don't see any compatibility issues (graphics card uses 1x6-pin connector which the Power Supply has). ATX case has USB3 which motherboard has.

Other:
I would have added a $30 cooler for the CPU but it didn't leave enough money for a basic keyboard mouse (Cooler Master Hyper 212 EVO recommended).

Windows 8 is better than Windows 7, but get Start8 ($5) to bypass the new interface if you wish.

SUMMARY:
I can't find a pre-built that's as good as this. In addition, a pre-built Warranty requires you to send the entire thing back for any issues.
 
Solution