is Corsair hx750i high-performance good power supply ?

[Abdallahmgz]

http://pcpartpicker.com/p/prDsrH
i have chosen this PS for future proof, cause i'm willing to add two way SLI setup

 

[davidarad02]

yes, but that PC is not that great for the price... this is better:

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($229.98 @ NCIX US)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($27.98 @ OutletPC)
Motherboard: MSI Z97-GAMING 5 ATX LGA1150 Motherboard ($139.99 @ SuperBiiz)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory ($49.99 @ Newegg)
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive ($97.89 @ OutletPC)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($51.49 @ OutletPC)
Video Card: Asus GeForce GTX 970 4GB STRIX Video Card ($319.99 @ SuperBiiz)
Case: NZXT S340 (Black) ATX Mid Tower Case ($64.99 @ Micro Center)
Power Supply: EVGA 750W 80+ Gold Certified Fully-Modular ATX Power Supply ($104.99 @ Newegg)
Keyboard: Corsair Vengeance K70 Wired Gaming Keyboard ($119.95 @ Amazon)
Mouse: Corsair M65 RGB Wired Laser Mouse ($64.79 @ Amazon)
Headphones: Audio-Technica M50x Headphones ($169.00 @ Adorama)
Other: Antlion modmic 4.0/Blue snowball ($50.00)
Total: $1491.03
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-06-03 06:05 EDT-0400

since the OS and monitor don't have a price, i'll guess you already have those