Build or upgrading advice

[Hawkinn]

I want to start twitch streaming. I have like a 5 year old computer. I don't know if I should use this computer for streaming and build another gaming computer, or build another streaming computer and just upgrade the graphics card on my current computer, or just salvage what I can and build another computer for gaming and streaming.
My specs right now:

Intel Core i7-950 Bloomfield Quad-Core 3.06GHz
Geforce gtx 460
650w power supply.
150gb WD velociraptor
Cooler master haf 932
12gb memory
1 1920x108 monitor.

If I have to build another gaming pc
Approximate Purchase Date: Anytime

Budget Range: $600-$1000 dollars

System Usage from Most to Least Important: All I will be doing is streaming and gaming

Parts Not Required: Keyboard, mouse, headset

Preferred Website(s) for Parts: Newegg

Country: United Stated

Overclocking: No

SLI or Crossfire: No

Monitor Resolution: 1920x1080

Additional Comments: Need a 2nd monitor, webcam and mic as well.

 

[digitaldoc]

Would vote to rebuild the system to an i5-4690k. Would also use an SSD.

 

[okcnaline]

Keep the RAM. And the case is a nice classic, so if you want to change it up now's a good time to build a color-themed build.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-4790K 4.0GHz Quad-Core Processor ($316.99 @ SuperBiiz)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($26.98 @ OutletPC)
Motherboard: ASRock Z97 EXTREME4 ATX LGA1150 Motherboard ($93.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($52.49 @ OutletPC)
Video Card: EVGA GeForce GTX 970 4GB SSC ACX 2.0 Video Card ($337.98 @ Newegg)
Case: Fractal Design Define S w/Window ATX Mid Tower Case ($89.99 @ NCIX US)
Power Supply: EVGA 750W 80+ Gold Certified Fully-Modular ATX Power Supply ($99.99 @ Newegg)
Total: $1003.41
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-05-12 23:14 EDT-0400

 

[digitaldoc]

http://pcpartpicker.com/p/Fy9Lxr

Need to add RAM, and put an SSD in as well as the HDD, but now we are overbudget, even downgrading from the 4790k to a 4690k.