Here is what I use. It is roughly 10 months old now.
Level 10 GT snow edition Thermaltake case
MSI GeForce GTX 980 DirectX 12 GTX 980 GAMING 4G 4GB 256-Bit GDDR5 PCI Express 3.0 x16 HDCP Ready SLI Support G-SYNC Support Video Card
MSI Gaming X99S Gaming 9 ACK LGA 2011-v3 Intel X99 SATA 6Gb/s USB 3.0 Extended ATX Intel Motherboard
Intel Core i7-5820K Haswell-E 6-Core 3.3 GHz LGA 2011-v3 140W BX80648I75820K Desktop Processor
G.SKILL Ripjaws 4 Series 16GB (4 x 4GB) 288-Pin DDR4 SDRAM DDR4 2400 (PC4 19200) Desktop Memory Model F4-2400C15Q-16GRK
Thermaltake Water 3.0 Extreme S CLW0224-B Water Cooler
Crucial MX100 2.5" 256GB SATA III MLC Internal Solid State Drive (SSD) CT256MX100SSD1
Western Digital 150 GB VelociRaptor SATA 3 Gb/s 10,000 RPM 16 MB Cache Bulk/OEM Enterprise Hard Drive - WD1500HLFS
------------Everything above this line was $2,124.90 off of Newegg.com-----------------------------
Gaming Peripherals
Corsair K95 RGB with Cherry MX Brown switches (Bday gift. I hate mechanical keyboards but this was the only RGB keyboard with 18 macro keys at the time. I DESPISE razer products just saying.)
Mad Catz Rat Pro X Gaming mouse (Won this in a contest Madcatz was having.)
Corsair 1500 headset (Seriously the most comfortable headset I have ever owned in my 20 years of gaming)
Lastly my monitor
Sanyo 52" Class LCD 1080p 120Hz HDTV , DP52440 (There is no lag on this what so ever. I love being able to sit 5 feet away.)
Please note that my motherboard has a streaming engine on it. I currently stream on twitch using Xsplit Broadcaster. My frames never dip below 100 FPS even with in dungeons or raids on the setup stated above.
My recommendation? Get a system like mine if you can afford it. Although pick up to date parts.
My system is currently overclocked with the OC Genie button on my botherboard to 4.0 GHZ. All are within acceptable and good ranges for a modest overclock such as mine. That is why I recommend MSI motherboards.