Okay, here's what I got for you. I'll explain my choice of CPU since it'll seem strange to a lot of people. A Xeon E3-1226 V3. Yes it is a server processor, but it will work fine for you. I picked it because it cost just as much, if not a tiny bit more, as a decent i5, but has almost all the advantages of an i7(including hyperthreading), which will be important for streaming. It is not overclockable, but you don't care about that anyway. :p It also has a decent benchmark(http://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+E3-1226+v3+%40+3.30GHz). I chose a semi-modular PSU because it will help with cable management. And I went with an NZXT case because it has pretty good cable management and a lot of space. PCPartPicker part list / Price breakdown by merchant
| Type | Item | Price |
|---|---|---|
| CPU | Intel Xeon E3-1226 V3 3.3GHz Quad-Core Processor | $214.99 @ SuperBiiz |
| Motherboard | MSI Z97 PC MATE ATX LGA1150 Motherboard | $87.99 @ Newegg |
| Memory | Team Xtreem Dark Series 8GB (2 x 4GB) DDR3-1600 Memory | $65.98 @ Newegg |
| Storage | Hitachi Ultrastar 1TB 3.5" 7200RPM Internal Hard Drive | $47.00 @ Amazon |
| Video Card | Zotac GeForce GTX 970 4GB Video Card | $325.99 @ SuperBiiz |
| Case | NZXT Source 210 (Black) ATX Mid Tower Case | $32.99 @ Micro Center |
| Power Supply | Corsair CX 500W 80+ Bronze Certified Semi-Modular ATX Power Supply | $54.99 @ Amazon |
| Operating System | Microsoft Windows 8.1 - 64-bit (OEM) (64-bit) | $92.00 @ B&H |
| Total | ||
| Prices include shipping, taxes, and discounts when available | $921.93 | |
| Generated by PCPartPicker 2014-12-23 17:32 EST-0500 |