Help with build... Have started, need suggestions

I am looking to build a new desktop since my current one is running a build from years ago. I am hoping to stay under $1000. I play mainly World of Warcraft, Borderlands 2, Sims 3, and other games like it. I also record and render videos. I am looking to build a system that I can upgrade later, so my main concern is if these components are good enough to be up-gradable for a few years. Please help me with any suggestions. I know a little about computers but not too much about building them, which is why I want to order from here instead of building my own.
 
Tower Case: ANTEC New Solution Series NSK4100, No PSU, ATX, Black, Mid Tower Case
Motherboard: GIGABYTE GA-H81M-S2PV, Intel H81 Chipset, LGA 1150, DDR3 16GB, DVI-D, microATX Retail Motherboard
Processor: INTEL Core i5-4460 Quad-Core 3.2 - 3.4GHz TB, HD Graphics 4600, LGA 1150, 6MB L3 Cache, DDR3 / DDR3L, 22nm, 84W, Retail Processor
Video Card: EVGA GeForce GTX 970 SSC GAMING ACX 2.0+, 1190 - 1342MHz, 4GB GDDR5 256-Bit, PCI Express 3.0 Graphics Card
Memory: KINGSTON 8GB Kit (2 x 4GB) HyperX Fury DDR3 1600MHz, PC3-12800, CL10 (10-10-10) 1.5V, Non-ECC, Black, DIMM Memory
Power Supply: EVGA 600B 600W, 80 PLUS Bronze, No Modular, ATX Power Supply
HDD Storage: SEAGATE 1TB Barracuda ST1000DM003, 7200 RPM, SATA 6Gb/s, 64MB cache, 3.5-Inch OEM HDD