The anti-static wrist band is more likely to snag on a part and knock it to the floor while you're working on the build than protect anything from a static shock. I wouldn't bother. There are ways to deal with static build up while building a computer that are acceptable compromises that don't involve wearing a leash.
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Personally I would only build a rig with the 860K if I intended to overclock it. Assuming this is for gaming, the 860K is going to need to be overclocked to the neighborhood of 4.4ghz+ to be competitive with an i3-4150. That would require a beefier motherboard and possibly a beefier HSF than the TX3... By the time we make the adjustment to support that the i3 is suddenly looking like the better value and we realize that the AMD option when used for gaming is more of a novelty than a better value. I'd probably build the novelty myself, because I'm like that, but I wouldn't advise it as a first choice to others. The i3-4150 has a known, awesome upgrade path, the 860K does not. The i3-4150 will run games as well as an overclocked 860K with a lower implementation cost.
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When building on budget boards with only 2 DIMM slots, you can start off with 1x8GB stick instead of 2x4GB so that you have a non-destructive upgrade path to 16GB. On paper it seems logical that "dual channel" would be a huge advantage (double the bandwidth), but it's more complicated than that. The bottleneck rarely lands squarely on memory bandwidth. Often, it is the access latency that becomes a larger component in the bottleneck with memory access. A single 8GB stick will be configured dual rank and allow the memory controller to operate in rank interleave mode, which improves access latency. In fact, in many workloads, especially on budget CPUs, the advantage of running rank interleave is comparable to the advantage of running channel interleave. Most 4GB DIMMs these days are being configured single rank to reduce cost.
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I notice the build is full of MIRs. MIRs are going to be the last thing you want to mess with when you start building the computer. Normally I would advise finding good deals that include shipping costs and don't involve having to fill out an MIR and hope it comes back. The build you have linked there is actually like $450 to the door....
I would advise something more like this:
PCPartPicker part list /
Price breakdown by merchant
CPU: Intel Core i3-4150 3.5GHz Dual-Core Processor ($105.99 @ SuperBiiz)
Motherboard: Biostar Hi-Fi H81S2 ATX LGA1150 Motherboard ($52.98 @ Newegg)
Memory: Crucial Ballistix Sport 8GB (1 x 8GB) DDR3-1600 Memory ($73.08 @ Amazon)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($53.99 @ Directron)
Case: Cougar MX300 ATX Mid Tower Case ($39.99 @ Newegg)
Power Supply: Rosewill Capstone 450W 80+ Gold Certified ATX Power Supply ($59.99 @ Newegg)
Total: $386.02
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-01-14 08:19 EST-0500
I left the GPU out of it, as that's the one component where there's a lot to potentially gain by searching used, refurb, clearance, open-box, or filling out the one big fat MIR (like on the HD7770 you found).
The HD7770 is equivalent to the R7 250X. Not a bad card for gaming at 720P. It can do 1080P gaming with low visual quality settings in modern games. I think you would be well off to look for a used GTX660 or HD7870 for <$100.