Best gaming pc for between 800-900$(No Monitor,Mouse,or keyboard)

For $1000:

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($238.99 @ Amazon)
CPU Cooler: Cooler Master Hyper 212 Plus 76.8 CFM Sleeve Bearing CPU Cooler ($19.99 @ Newegg)
Motherboard: ASRock Z97 PRO4 ATX LGA1150 Motherboard ($99.99 @ Newegg)
Memory: G.Skill Ripjaws Series 8GB (2 x 4GB) DDR3-1600 Memory ($83.99 @ Newegg)
Storage: Crucial MX100 128GB 2.5" Solid State Drive ($74.99 @ Amazon)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($54.98 @ OutletPC)
Video Card: Asus Radeon R9 280 3GB DirectCU II Video Card ($209.99 @ Newegg)
Case: Corsair 300R ATX Mid Tower Case ($59.99 @ Micro Center)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($55.48 @ SuperBiiz)
Optical Drive: LG GH24NSB0 DVD/CD Writer ($14.99 @ NCIX US)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($84.99 @ NCIX US)
Total: $985.37
Prices include shipping, taxes, and discounts when available
 
Solution
ah sorry for not answering if your floor is carpet a anti static mat is good(any brand dosent matter), a wristband on a carpet or hard floor(wood,tile,etc). or you can frequently touch a case with a psu plugged in it also works just as good. But getting the wristband or mat is handy if your really foucsed and forget to touch the case