which pc? please share your opinions

FX-8320 & GTX 760 & 8GB RAM Price:
Ł679.24
Case
G6 Vantage Red (ATX)
Processor
AMD FX 8320 (8x 3.50GHz) AM3
Motherboard
Asus M5A97 LE - AM3+, USB 3.0,
(ATX)
Memory (RAM)
8gb Kingston Hyper-X DDR3 160
Graphics
2GB Nvidia GeForce GTX 760 - D
HDMI, DP, 3D
1st Hard Drive
1TB SATA3 Hard Drive (UDMA60
Optical Drive
DVD Writer Drive
Power Supply
500w Corsair CX500M Modular
Processor Cooling
Standard CPU Cooler
PCI-E Slot 1
300 MBPS Wireless Card
Operating System
Windows 7 Home Premium (64 b

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FX-8320 & 660 Direct CU II OC & 16GB
RAM Price: Ł690.06
Case
G6 Vantage White - Limited Editi
(ATX)
Processor
AMD FX 8320 (8x 3.50GHz) AM3
Motherboard
Asus M5A97 LE - AM3+, USB 3.0,
(ATX)
Memory (RAM)
16gb Kingston Hyper-X DDR3 16
Graphics
Asus 2GB Nvidia GeForce GTX 66
DirectCU II OC - DVI-D, DVI-I, HD
3D
1st Hard Drive
1TB SATA3 Hard Drive (UDMA60
Optical Drive
DVD Writer Drive
Power Supply
500w Corsair CX500M Modular
Processor Cooling
Standard CPU Cooler
PCI-E Slot 1
300 MBPS Wireless Card
Operating System
Windows 7 Home Premium (64 b

----------------------------------
FX-6300 & GTX760 & 8GB RAM Price:
Ł691.49
Case
G6 Vantage Red (ATX)
Processor
AMD FX 6300 (6x 3.50GHz) AM3
Motherboard
Asus M5A99X EVO - AM3+, USB
SATA3 (ATX)
Memory (RAM)
8gb Kingston Hyper-X DDR3 160
Graphics
2GB Nvidia GeForce GTX 760 - D
HDMI, DP, 3D
1st Hard Drive
1TB SATA3 Hard Drive (UDMA60
Optical Drive
DVD Writer Drive
Power Supply
500w Corsair CX500M Modular
Processor Cooling
Standard CPU Cooler
PCI-E Slot 1
300 MBPS Wireless Card
Operating System
Windows 7 Home Premium (64 b

----------------------------
FX-6300 & GTX760 & 16GB RAM Price
Ł691.30
Case
G6 Vantage Red (ATX)
Processor
AMD FX 6300 (6x 3.50GHz) AM3
Motherboard
Asus M5A78L-M/USB3 - AM3+, U
SATA2 (MATX)
Memory (RAM)
16gb Kingston Hyper-X DDR3 16
Graphics
2GB Nvidia GeForce GTX 760 - D
HDMI, DP, 3D
1st Hard Drive
1TB SATA3 Hard Drive (UDMA60
Optical Drive
DVD Writer Drive
Power Supply
500w Corsair CX500M Modular
Processor Cooling
Standard CPU Cooler
PCI-E Slot 1
300 MBPS Wireless Card
Operating System
Windows 7 Home Premium (64 b
Warranty
3 Year Bronze (1 Year Parts & La
2 Year Labour)

I received an email with a list of pcs to buy from company called ginger6. They look very similar to me but ive got few questions:
1. Which one would be the best for gaming?
2. Which one would give the best gaming performance now and in 2-3 years?
3. Are they worth their prices?