CPU+ Mobo: GIGABYTE Z87X-D3H + i7 4790K (667)
RAM: 2X G.SKILL PC 12800/1600MHZ DDR3 CL11 VALUE RAM (8GB) (204)
GPU: ZOTAC GTX 970 4GB TWIN FAN (509)
SSD: SAMSUNG EVO 250GB (179)
HDD: WESTERN DIGITAL 2 TB RED (131)
DVD-RW: LG 24X DVD-RW SATA OEM (25)
PSU: SEASONIC S12G-Non MODULAR 650W (129)
Case: CORSAIR 400R (138)
OS: WINDOWS 7 HOME PREM (120)
CPU Cooler: CM HYPER 212X (57)
Total cost: $2159
Buy at PC Themes, #04-15, and ask for discounts. DIY yourself. If you can't into DIY, go to PC Care & Solution at #02-32 and ask Nigel to help you assemble for a fee.
Notes:
1) A Gigabyte Z87-D3H is suggested as it is relatively cheap, supports SLI and has 8+0 VRM phases for reliability during overclocking.
2) A GTX 970 is suggested as a GTX 970 can generally play most games at 1440p with an average of 50-60 FPS depending on game and is much cheaper than a GTX 980 (About $200+ difference.) If this is not enough, you can get another GTX 970 and go for a SLI configuration for better gaming performance at 1440p. Do remember to upsize your PSU to a 800+W PSU if going SLI.
3) A Corsair 400R is suggested as a much cheaper alternative to the 760T. However, casing opinions are subjective and you may wish to take a walk around SLS to check out the casings displayed there.
4) You can't go far on OC with stock cooling, hence a relatively cheap aftermarket cooler is included to start you out on OC.
5) ValueRAMs are suggested as they are in a standard height of 30mm and thus are compatible with all heatsinks. If you want to get better heatsinks or RAMs, please take note of heatsink RAM clearances and RAM heights as top end heatsinks have a RAM clearance of 30+mm and some RAMs have heatspreaders of a height of 40mm, leading to the RAM being unusable due to the heatsink blocking off the RAM slots.