Okay ill try to write it on my ipod...sorry for that :$
1.For the CPU get a 4670/4670k,its very recommended
For about 235$
Intel Core i5-4670K Quad-Core Desktop Processor 3.4 GHZ 6 MB Cache - BX80646I54670K:Amazon:Computers & Accessories
2.For the mobo get the MSI-Z87 G43 for about 120$ MSI Computer Corp. Motherboard ATX DDR3 1333 LGA 1150 Motherboards Z87-G43:Amazon:Computers & Accessories
3.for the GPU get the 280x for about 300$ ,here the link for one of them Sapphire Radeon R9 280X 3GB GDDR5 DVI-I/DVI-D/HDMI/DP Dual-X OC Version (UEFI) PCI-Express Graphics Card 11221-00-20G:Amazon:Computers & Accessories
4.For RAM id get the Corsair *Vengeance 8gb,you could also get 16gb for about 75$
Corsair Vengeance Blue 8 GB (2X4 GB) PC3-12800 1600mHz DDR3 240-Pin SDRAM Dual Channel Memory Kit CMZ8GX3M2A1600C9B:Amazon:Electronics
5.For the case get the 200r for about 60$
Corsair Carbide Series 200R Compact ATX Case CC-9011023-WW:Amazon:Computers & Accessories
6.For the psu get the cx600 for about 66$
Corsair Builder Series CX 600 Watt ATX/EPS* 80 PLUS (CX600):Amazon:Computers & Accessories
7.for a cooler for the cpu get the evo 212 for 33$
Cooler Master Hyper 212 EVO - CPU Cooler with 120mm PWM Fan (RR-212E-20PK-R2):Amazon:Electronics
8.For the OS win7/8 for about 90$
9.For an HDD get the caviar black 1tb(or more) for about 90$
Western Digital WD Black WD1002FAEX Internal Hard Drive - Newegg.com
10.and optional a SSD to store the OS and other files for about 90$
Newegg.com - SAMSUNG 840 EVO MZ-7TE120BW 2.5" 120GB SATA III MLC Internal Solid State Drive (SSD)
Thats about it i think the mobo might be a bit underkill but yea..
Exactly 1100$
Thank me if i helped you