Building my first gaming computer, I've never done this before and need help. I've selected some components and need to confirm that the components are all compatible before I purchase them all. Please help! Recommendations/Comments on the components I chose are appreciated. I'm having trouble choosing suitable RAM also. Not planning on overclocking.
Motherboard: Asus P8Z77-V PRO
http://www.scan.co.uk/products/asus-p8z77-v-pro-intel-z77-s-1155-ddr3-sata-iii-6gb-s-d-sub-(vga)-displayport-dvi-i-hdmi-atx
Processor: Intel i5 3570K Quad Core IvyBridge
http://www.scan.co.uk/products/29-4intel-core-i5-3570k-s-1155-ivy-bridge-quad-core-34ghz-5-gt-s-dmi-650mhz-gpu-6mb-smart-cache-34x-
RAM Memory (unsure): Corsair Memory Daminator Platinum 16GB DDR3 1866MHz
http://www.scan.co.uk/products/16gb-(2x8gb)-corsair-ddr3-dominator-platinum-pc3-14900-(1866)-non-ecc-unbuffered-cas-10-11-10-30-dhx
Hard Drive: Seagate 2TB Sata III 7200 RPM 64MB Cache
http://www.scan.co.uk/products/2tb-seagate-st2000dm001-barracuda-720014-sata-3-6gb-s-7200rpm-64mb-cache-8ms-oem-ncq
SSD: Intel 240GB Sata III 6Gb/s
http://www.scan.co.uk/products/240gb-intel-520-series-25-ssd-sata-iii-6gb-s-mlc-flash-write-520mb-s-60k-iops-oem
Graphics cards (Getting two of them. ?Means running in SLI, correct?):
MSI GTX660 Ti 2GB
http://www.scan.co.uk/products/2gb-msi-gtx-660-ti-power-edition-oc-28nm-6008mhz-gddr5-gpu-1019mhz-boost-1097mhz-cores-1344-2x-dl-dv
Power Supply: Corsair AX860i 860W Fully Modular
http://www.scan.co.uk/products/860w-corsair-ax860i-digital-full-modular-80-plus-platinum-92-eff-eps-12v-sli-crossfire-1-x-120mm-atx
CPU Cooler: Artic Cooling Freezer i30
http://www.scan.co.uk/products/arctic-cooling-freezer-i30-cpu-dt-4-heat-pipe-cooler-with-120mm-silent-fan-for-intel-socket-lga-2011
Monitor: Asus LED 27" 1920x1080 Res
http://www.scan.co.uk/products/27-asus-ve278h-led-monitor-1920-x-1080-vga-dvi-hdmi-speakers-2ms-300-cd-m2
Case: Thermaltake Armor REVO Case (WxHxD) (254 x 586 x 552)
http://www.scan.co.uk/products/thermaltake-vo200m1w2n-armor-revo-full-tower-black-atx-case-w-o-psu
Motherboard: Asus P8Z77-V PRO
http://www.scan.co.uk/products/asus-p8z77-v-pro-intel-z77-s-1155-ddr3-sata-iii-6gb-s-d-sub-(vga)-displayport-dvi-i-hdmi-atx
Processor: Intel i5 3570K Quad Core IvyBridge
http://www.scan.co.uk/products/29-4intel-core-i5-3570k-s-1155-ivy-bridge-quad-core-34ghz-5-gt-s-dmi-650mhz-gpu-6mb-smart-cache-34x-
RAM Memory (unsure): Corsair Memory Daminator Platinum 16GB DDR3 1866MHz
http://www.scan.co.uk/products/16gb-(2x8gb)-corsair-ddr3-dominator-platinum-pc3-14900-(1866)-non-ecc-unbuffered-cas-10-11-10-30-dhx
Hard Drive: Seagate 2TB Sata III 7200 RPM 64MB Cache
http://www.scan.co.uk/products/2tb-seagate-st2000dm001-barracuda-720014-sata-3-6gb-s-7200rpm-64mb-cache-8ms-oem-ncq
SSD: Intel 240GB Sata III 6Gb/s
http://www.scan.co.uk/products/240gb-intel-520-series-25-ssd-sata-iii-6gb-s-mlc-flash-write-520mb-s-60k-iops-oem
Graphics cards (Getting two of them. ?Means running in SLI, correct?):
MSI GTX660 Ti 2GB
http://www.scan.co.uk/products/2gb-msi-gtx-660-ti-power-edition-oc-28nm-6008mhz-gddr5-gpu-1019mhz-boost-1097mhz-cores-1344-2x-dl-dv
Power Supply: Corsair AX860i 860W Fully Modular
http://www.scan.co.uk/products/860w-corsair-ax860i-digital-full-modular-80-plus-platinum-92-eff-eps-12v-sli-crossfire-1-x-120mm-atx
CPU Cooler: Artic Cooling Freezer i30
http://www.scan.co.uk/products/arctic-cooling-freezer-i30-cpu-dt-4-heat-pipe-cooler-with-120mm-silent-fan-for-intel-socket-lga-2011
Monitor: Asus LED 27" 1920x1080 Res
http://www.scan.co.uk/products/27-asus-ve278h-led-monitor-1920-x-1080-vga-dvi-hdmi-speakers-2ms-300-cd-m2
Case: Thermaltake Armor REVO Case (WxHxD) (254 x 586 x 552)
http://www.scan.co.uk/products/thermaltake-vo200m1w2n-armor-revo-full-tower-black-atx-case-w-o-psu