First build. How is it?

[ShayyDog]

Hey guys! I'm just about to order all the parts for my first PC and wanted you guys to see it and pick apart anything that may be bad.
PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i3-4150 3.5GHz Dual-Core Processor ($104.75 @ OutletPC)
Motherboard: ASRock Z97 Anniversary ATX LGA1150 Motherboard ($76.98 @ Newegg)
Memory: Crucial Ballistix Sport 8GB (2 x 4GB) DDR3-1600 Memory ($60.95 @ OutletPC)
Storage: Hitachi Ultrastar 1TB 3.5" 7200RPM Internal Hard Drive ($46.75 @ Amazon)
Video Card: Asus Radeon R9 270 2GB DirectCU II Video Card ($147.98 @ Newegg)
Case: NZXT Source 220 ATX Mid Tower Case ($49.99 @ Newegg)
Power Supply: EVGA 600B 600W 80+ Bronze Certified ATX Power Supply ($34.99 @ Newegg)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) ($87.75 @ OutletPC)
Total: $610.14
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-02-23 22:14 EST-0500

I also have another build with all the same parts except the GPU is a Gigabyte Windforce R9 270X. Is it worth an extra $25 or so?
Any input would be well appreciated.

 

[ShayyDog]

The games I plan to play are mainly Minecraft, Rust, DayZ, and MAYBE a little Battlefield 4. I also have a PS4 and will still do a majority of my gaming on there until I finally make the full switch.

 

[yahoo90]

Nothing is bad. its a very good build.

R9 270 is enough. if you can spend extra get R9270x itself. its just a overclock card of R9 270. other wise you can do it yourself with software.

 

[ShayyDog]

Nothing is bad. its a very good build.

R9 270 is enough. if you can spend extra get R9270x itself. its just a overclock card of R9 270. other wise you can do it yourself with software.

The 600w power supply just went off sale last night. Recommend anything under $40 that is enough for either of my builds?

 

[yahoo90]

You can Buy EVGA 500W. its enough for your configuration. its 39.99$ after rebate.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817438012.

or

if you can save more money you can buy this ->

http://www.newegg.com/Product/Product.aspx?Item=N82E16817151094&cm_re=s12ii_520-_-17-151-094-_-Product

it has better quality compared to EVGA.