Get this, and do yourself a favour and look on Craigslists for a GPU. You're gonna get way more bang for your buck buying used. I know that it's only a dual core, but at least it has an upgrade path and in the future you can get an i5, and in the meantime you can overclock the G3258 to like 4.0GHZ with the stock cooler, which is pretty good. You will need to update the bios for you motherboard, though I think Windows 10 does that automatically.
PCPartPicker part list / Price breakdown by merchant
CPU: Intel Pentium G3258 3.2GHz Dual-Core Processor ($64.89 @ OutletPC)
Motherboard: MSI H81M-P33 Micro ATX LGA1150 Motherboard ($42.89 @ OutletPC)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory ($41.99 @ Amazon)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($52.33 @ OutletPC)
Case: NZXT Source 210 (Black) ATX Mid Tower Case ($38.99 @ SuperBiiz)
Power Supply: EVGA 500W 80+ Bronze Certified ATX Power Supply ($29.99 @ NCIX US)
Total: $271.08
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-10-18 12:42 EDT-0400