If you can push your budget by a bit,you can get a pretty awesome build:
PCPartPicker part list: http://pcpartpicker.com/p/xPgsMp
Price breakdown by merchant: http://pcpartpicker.com/p/xPgsMp/by_merchant/
CPU: Intel Pentium G3258 3.2GHz Dual-Core Processor ($67.99 @ NCIX US)
Motherboard: Gigabyte GA-H81M-HD3 Micro ATX LGA1150 Motherboard ($63.70 @ Amazon)
Memory: Crucial Ballistix Sport 4GB (1 x 4GB) DDR3-1600 Memory ($40.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($53.98 @ OutletPC)
Video Card: Asus Radeon R7 260X 2GB DirectCU II Video Card ($104.99 @ Micro Center)
Case: Cooler Master N200 MicroATX Mid Tower Case ($49.99 @ Newegg)
Power Supply: EVGA 500W 80+ Bronze Certified ATX Power Supply ($34.99 @ Newegg)
Total: $408.63
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-09-05 09:44 EDT-0400
You can easily upgrade to an i5 4690K or i7 4790K with this motherboard.
All the best.