needing help choosing a power supply and case

[bobdaul]

So I am definitely on a budget and looking for finding the correct (psu modular or not and wattage) for my build and a case that is recommended for cable management and price!
My Build:
http://pcpartpicker.com/p/RyrQQ7

Side note of a temporary fix:
In addition to the first question my friend is willing to give me his psu and case (going to look at it soon) that are old from his css days. The psu is a 420w which is higher then the estimated wattage (350) Would using his psu and case be a good idea for a temporary fix? It should be noted that his case is definitely old enough not to have any usb 3.0 slots so would this be that big of a deal?

 

[turbopiki]

PCPartPicker part list / Price breakdown by merchant

CPU: AMD FX-8350 4.0GHz 8-Core Processor (Purchased For $160.00)
Motherboard: Asus M5A99FX PRO R2.0 ATX AM3+ Motherboard (Purchased For $100.00)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-2400 Memory (Purchased For $50.00)
Storage: OCZ ARC 100 120GB 2.5" Solid State Drive ($60.98 @ Newegg)
Storage: Hitachi Deskstar 7K2000 2TB 3.5" 7200RPM Internal Hard Drive ($56.80 @ Amazon)
Video Card: Gigabyte GeForce GTX 960 4GB Video Card (Purchased For $210.00)
Case: NZXT S340 (Black) ATX Mid Tower Case ($54.99 @ Micro Center)
Power Supply: EVGA 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($49.99 @ NCIX US)
Total: $742.76
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-07-30 01:40 EDT-0400

I picked 750w PSu because it the cheapest good quality PSU, and you will have room for future upgrades

Also changed the SSD for better one

 

[bobdaul]

PCPartPicker part list / Price breakdown by merchant

CPU: AMD FX-8350 4.0GHz 8-Core Processor (Purchased For $160.00)
Motherboard: Asus M5A99FX PRO R2.0 ATX AM3+ Motherboard (Purchased For $100.00)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-2400 Memory (Purchased For $50.00)
Storage: OCZ ARC 100 120GB 2.5" Solid State Drive ($60.98 @ Newegg)
Storage: Hitachi Deskstar 7K2000 2TB 3.5" 7200RPM Internal Hard Drive ($56.80 @ Amazon)
Video Card: Gigabyte GeForce GTX 960 4GB Video Card (Purchased For $210.00)
Case: NZXT S340 (Black) ATX Mid Tower Case ($54.99 @ Micro Center)
Power Supply: EVGA 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($49.99 @ NCIX US)
Total: $742.76
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-07-30 01:40 EDT-0400

I picked 750w PSu because it the cheapest good quality PSU, and you will have room for future upgrades

Also changed the SSD for better one

Thanks!
What exactly are the differences between the ssds btw?
Also how likely is it that I will actually get the $30 from the rebate? I hear companies are very stubborn to hand out the rebate cards.

 

[turbopiki]

Never had anything with rebates since i am not from US but i read that there are sometimes problems getting that money back. You can get this PSU if you dont want to bother with rebate it costs a bit more.

http://pcpartpicker.com/part/xfx-power-supply-p1550sxxb9

OCZ ARC 100 is faster http://ssd.userbenchmark.com/Compare/OCZ-ARC-100-240GB-vs-Corsair-Force-LS-240GB/2603vs3340