Custom PC Needin Checking!

Heyas! My friend is stuck with buying new PC and budget (Which is about 1000-1200 Euros). This is the PC that I figured out for him. I'd ask you to see if the PC Case is good, if the Cooler is enough, will there be any problems? The purpose and main focus of this PC is Gaming. Probably using Dual Screen too!

Also, if something could be replaced with somewhat cheaper but still awesome component, as he'd like to try and get a monitor as-well with it. (Which I doubt for now, but we'll see.)

A link but its on other language.

PC Case: Chieftec Dragon CH-07B-B-OP (...4x 5,25" extern, 6x 3,5" intern, ATX, µATX, E-ATX...)

Motherboard: (Socket 1156) ASUS P7P55D ...Intel® P55, ATX, 2x PCIe x16 v2.0, 1156...)

Processor: Intel® Core™ i7-870 (...4x 2933 MHz, 4x 256 kB, 8192 kB, Lynnfield...)

GPU: ASUS ENGTX460 DirectCU/2DI/1GD5 (...NVIDIA GeForce GTX 460, 1024 MB, 256 Bit, PCIe x16 v2.0...)

PSU: Cooler Master GX650 (...650 Watt, ATX 2.03, EPS, ATX12V 2.3, 6 x, 3 x...)

RAM: 2x Kingston ValueRAM 4 GB DDR3-1333

HDD: Harddisks 3,5 inch SATA Samsung HD502HJ (...500 GB, 8,9 / 16 / 7200, € 0,08*, Serial ATA/300...)

Burner: ASUS DRW-24B3ST (Retail, 12x DVD-RAM schrijven, Zwart)