New to PC gaming

Sup
This build if you think you gonna oveclock
Enermax Staray, Black, Blue Fan
Seasonic SS-600ET, 600W, 80+ Bronze, Bulk
Asrock Z77 Pro3
Intel Core i5-3570K (3.4GHz, 6MB Cache, LGA1155)
Kingston 8GB, DDR3, 1866MHz, CL9, Kit Of 2, Predator Series Sparkle GeForce GTX660 Ti, 2GB, GDDR5
Western Digital 1TB 7200RPM 64MB SATA3 Caviar Black
Samsung SH-224BB, DVD+/-RW, 24x, SATA, Black
881 euro


If you not planning on oveclocking then:
Enermax Staray, Black, Blue Fan
Seasonic SS-600ET, 600W, 80+ Bronze, Bulk
Asrock H77 Pro4-M
Intel Core i5-3570 (3.4GHz, 6MB Cache, LGA1155)
Kingston 8GB, DDR3, 1333MHz, CL9, Kit Of 2, HyperX Blu Sparkle GeForce GTX660 Ti, 2GB, GDDR5
Western Digital 1TB 7200RPM 64MB SATA3 Caviar Black
Samsung SH-224BB, DVD+/-RW, 24x, SATA, Black
837 euro


Although i'm not sure why would you need three monitors, so these build will not give you this option. For that you may need to change videocard for example Sapphire Radeon HD7850, 1GB, GDDR5, Dual DVI — gives you two monitors: minus 100 euro in price.

Lol you got that wrong. He lives in England with British Pounds, not Euros  

Would the sli setup of 2 gtx 660 be better than one 670 or 680?

For more processing power:

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i7-3770K 3.5GHz Quad-Core Processor (£239.94 @ Scan.co.uk)
CPU Cooler: Noctua NH-D14 65.0 CFM CPU Cooler (£56.57 @ Scan.co.uk)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard (£104.12 @ Scan.co.uk)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory (£30.96 @ Scan.co.uk)
Storage: Seagate Barracuda 500GB 3.5" 7200RPM Internal Hard Drive (£41.98 @ Scan.co.uk)
Video Card: XFX Radeon HD 7970 GHz Edition 3GB Video Card (£372.95 @ Scan.co.uk)
Case: NZXT Source 210 (White) ATX Mid Tower Case (£31.18 @ Scan.co.uk)
Power Supply: XFX 650W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply (£65.30 @ CCL Computers)
Optical Drive: LG GH24NS90 DVD/CD Writer (£13.98 @ Novatech)
Total: £956.98
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2012-11-10 18:50 GMT+0000)

For more gaming power:

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor (£166.16 @ CCL Computers)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler (£26.13 @ Ebuyer)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard (£104.12 @ Scan.co.uk)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory (£30.96 @ Scan.co.uk)
Storage: Seagate Barracuda 500GB 3.5" 7200RPM Internal Hard Drive (£41.98 @ Scan.co.uk)
Video Card: XFX Radeon HD 7950 3GB Video Card (CrossFire) (£216.98 @ Dabs)
Video Card: XFX Radeon HD 7950 3GB Video Card (CrossFire) (£216.98 @ Dabs)
Case: NZXT Source 210 (White) ATX Mid Tower Case (£31.18 @ Scan.co.uk)
Power Supply: XFX 850W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply (£79.99 @ Amazon UK)
Optical Drive: LG GH24NS90 DVD/CD Writer (£13.98 @ Novatech)
Total: £928.46
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2012-11-10 18:49 GMT+0000)

XFX power supplies are Seasonic made, and retain the same build quality and reliability.

Lol, yes. It hardly changes anything, even becomes cheaper, so the 881 EUR = 719.96 GBP

In pure processing power, yes. But there are many issues with SLI. One is microstuddering that occurs in games with higher FPS. This can be very bothersome during play. Another reason is that some games aren't optimized/support SLI so only 1 GPU is used. Just go with a 670 from EVGA. The 670 is only 5% slower than a 680, and much cheaper. As for EVGA, best manufacturer when it comes to NVIDIA cards.

I want a setup with nvidia graphics cards just due to preference so if anyone can post a good setup with nvidia graphics cards that would be great

Just go with Sonicers i5 build but substitute that 7970 with a 670 FTW+.