The 90% build would be this:
PCPartPicker part list / Price breakdown by merchant
| Type | Item | Price |
|---|---|---|
| CPU | Intel Core i7-4790K 4.0GHz Quad-Core Processor | $279.99 @ Micro Center |
| CPU Cooler | RAIJINTEK EreBoss 56.5 CFM Sleeve Bearing CPU Cooler | $31.99 @ NCIX US |
| Motherboard | ASRock Z97 EXTREME4 ATX LGA1150 Motherboard | $79.99 |
| Memory | Apotop 16GB (2 x 8GB) DDR3-1600 Memory | $99.00 @ Amazon |
| Storage | Crucial MX100 256GB 2.5" Solid State Drive | $104.99 @ Adorama |
| Storage | Seagate Barracuda 3TB 3.5" 7200RPM Internal Hard Drive | $89.74 @ Amazon |
| Video Card | Zotac GeForce GTX 970 4GB Video Card | $309.99 @ Amazon |
| Case | Antec Eleven Hundred V2 ATX Mid Tower Case | $49.99 @ NCIX US |
| Power Supply | EVGA SuperNOVA NEX 750W 80+ Bronze Certified Semi-Modular ATX Power Supply | $49.99 @ NCIX US |
| Wireless Network Adapter | TP-Link TL-WDN3800 802.11a/b/g/n PCI-Express x1 Wi-Fi Adapter | $31.98 @ OutletPC |
| Prices include shipping, taxes, rebates, and discounts | ||
| Total (before mail-in rebates) | $1172.65 | |
| Mail-in rebates | -$45.00 | |
| Total | $1127.65 | |
| Generated by PCPartPicker 2015-03-11 15:29 EDT-0400 |
The motherboard, like the one in the other build, is in combo with the CPU (though it also has a $15 rebate, so it's actually even cheaper). The RAM count is down to your preference, of course, as going up to 32GB would just mean adding a second 16GB kit.