Need Advice on First Build

Solution
Your build is viable - everything will work together.
Just experience with PC building will tell when it comes to choosing components.

A few pointers on the build you've selected.
I Would always use an aftermarket cooler on an amd chip - the stock coolers are noisy as hell.
Look for the best deals on good quality coolers.

http://www.newegg.com/Product/Product.aspx?Item=9SIA66Z28G3802&FM=1

^ that's the best deal at the mo easily.

The 860 is a nice little chip - good performer ,over clocks well.
It needs fast ram to get the most from it though - 1600mhz WILL impact performance.
Look for good quality 2133 cas 9 if possible.

https://pcpartpicker.com/parts/memory/#s=302133&Z=8192002&L=30,90&sort=a10&page=1

Any of those for an extra $10...
The things you want to put the most money into would be the cpu and gpu. You also must be careful that the Nvidia card is compatible with the motherboard. Plus check if the APU/CPU is compatible with the motherboard. Same goes with the ram!

I would also recommend a better psu. Get one that is 500+ watts

I can create a configuration for you if you'd like to save the hassle of incompatibilities and what not.
 


That would be helpful. Thank you.
 


As low as feasible. Realistically, in the range of five-to-six-hundred dollars.

Also, as an aside, is the parts-list I created a decent starting point?
 


Question: Is the build that I created viable? In theory (rhetorical, not scientific), it is a decent computer, but I'm not sure it is sustainable. Do I need the Enermax cooler or can I use the stock cooler? Do I need thermal paste? Should I go with the GeForce GT 740 or something "beefier?"
I am far more interested in figuring out my own build than I am in taking another build. Not to mention, my build is fairly cheap as it stands.
Are you willing to aid me in this quest?
 


While I realize that I am subverting your advice, may I ask this: What about a 750ti? You must understand that I have very little money.
 
Your build is viable - everything will work together.
Just experience with PC building will tell when it comes to choosing components.

A few pointers on the build you've selected.
I Would always use an aftermarket cooler on an amd chip - the stock coolers are noisy as hell.
Look for the best deals on good quality coolers.

http://www.newegg.com/Product/Product.aspx?Item=9SIA66Z28G3802&FM=1

^ that's the best deal at the mo easily.

The 860 is a nice little chip - good performer ,over clocks well.
It needs fast ram to get the most from it though - 1600mhz WILL impact performance.
Look for good quality 2133 cas 9 if possible.

https://pcpartpicker.com/parts/memory/#s=302133&Z=8192002&L=30,90&sort=a10&page=1

Any of those for an extra $10 or so will get you upto a 10% performance increase compared to 1600 MHz.

Regarding the PSU - I don't have a problem with the CX 430 on lowish powered budget builds - I've used them a fair bit & they are a solid little number.

A decentish 500w will give you more room for upgrades though.people will call me for this but IMO the evga 500b is a very solid little unit for the money.

https://pcpartpicker.com/part/evga-power-supply-100b10500kr

Case wise - matx build like yours - cooler master n200 every time ,plain looks but nothing touches it for the money. Solid preinstalled cooling ,good cable management options ,plenty of room ,will fit any CPU cooler or GPU with ease.100% worth the extra outlay over the thermal take.

https://pcpartpicker.com/part/cooler-master-case-nse200kkn1

GPU wise - any kind of gaming ,a 750ti absolute minimum.for very similar money though id go for a 270/270x/gtx 960 .

Work out what budget you have left max & you'll get good advice on currently available cards








 
Solution
You said your budget is from 500-600$?
Depending on where you buy prices may be different tho.

PCPartPicker part list: http://pcpartpicker.com/p/m7QWdC
Price breakdown by merchant: http://pcpartpicker.com/p/m7QWdC/by_merchant/

CPU: AMD FX-6300 3.5GHz 6-Core Processor ($95.93 @ OutletPC)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($26.99 @ Newegg)
Motherboard: Gigabyte GA-970A-UD3P ATX AM3+ Motherboard ($76.98 @ Newegg)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1866 Memory ($53.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($52.49 @ OutletPC)
Video Card: Sapphire Radeon R9 280 3GB Dual-X Video Card ($159.99 @ Newegg)
Case: NZXT S340 (Black) ATX Mid Tower Case ($64.99 @ Micro Center)
Power Supply: EVGA SuperNOVA NEX 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($78.99 @ SuperBiiz)
Total: $598.35
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-05-17 08:08 EDT-0400

Also there's combo for MOBO and RAM on Newegg

Edit : Also if this is maybe little too expensive for you, you can drop that CPU cooler if you don't plan to overclock. Or even drop a r9 280 for r9 270/270x
 


Thank you for your aid, sir.