Low-medium end gaming pc w/ $400-500 budget, suggestions please!

Solution
@realchaos
Add after market cooler for your build

PCPartPicker part list: http://pcpartpicker.com/p/NqfO
Price breakdown by merchant: http://pcpartpicker.com/p/NqfO/by_merchant/
Benchmarks: http://pcpartpicker.com/p/NqfO/benchmarks/

CPU: Intel Core i3-3220 3.3GHz Dual-Core Processor ($118.79 @ Amazon)
Motherboard: ASRock B75M-DGS Micro ATX LGA1155 Motherboard ($58.97 @ Newegg)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory ($47.98 @ Amazon)
Storage: Western Digital Caviar Blue 500GB 3.5" 7200RPM Internal Hard Drive ($39.99 @ Microcenter)
Video Card: Sapphire Radeon HD 7790 1GB Video Card ($124.98 @ NCIX US)
Case: Rosewill Line-M MicroATX Mini Tower Case ($54.99 @ Newegg)
Power Supply: Corsair Builder 430W 80...
PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: AMD Phenom II X4 965 Black 3.4GHz Quad-Core Processor ($92.99 @ NCIX US)
Motherboard: Gigabyte GA-78LMT-S2P Micro ATX AM3+ Motherboard ($46.99 @ Newegg)
Memory: Crucial Ballistix sport 4GB (2 x 2GB) DDR3-1600 Memory ($26.85 @ NCIX US)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($74.99 @ Newegg)
Video Card: Sapphire Radeon HD 7790 1GB Video Card ($155.38 @ Newegg)
Case: Zalman Z5 Plus ATX Mid Tower Case ($39.99 @ Newegg)
Power Supply: Antec High Current Gamer 400W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($44.97 @ Amazon)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($17.99 @ Newegg)
Total: $493.15
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-03-31 04:28 EDT-0400)
Changed processor to a phenom x4 965 BE. Although the i3-3220 wins due to most games only needing ~2cores, the gpu upgrade is worth it. A phenom x4 965 + 7790 will beat an i3-3220 + 7770.
Got cheaper, DDR3-1600 ram.
Upgraded to 1tb HDD
Grabbed a mid-tower case instead. I feel like you'll have more upgrade options with a mid-tower rather than a micro-atx case. If you want, you could always grab the micro-atx instead.
 
@realchaos
Add after market cooler for your build

PCPartPicker part list: http://pcpartpicker.com/p/NqfO
Price breakdown by merchant: http://pcpartpicker.com/p/NqfO/by_merchant/
Benchmarks: http://pcpartpicker.com/p/NqfO/benchmarks/

CPU: Intel Core i3-3220 3.3GHz Dual-Core Processor ($118.79 @ Amazon)
Motherboard: ASRock B75M-DGS Micro ATX LGA1155 Motherboard ($58.97 @ Newegg)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory ($47.98 @ Amazon)
Storage: Western Digital Caviar Blue 500GB 3.5" 7200RPM Internal Hard Drive ($39.99 @ Microcenter)
Video Card: Sapphire Radeon HD 7790 1GB Video Card ($124.98 @ NCIX US)
Case: Rosewill Line-M MicroATX Mini Tower Case ($54.99 @ Newegg)
Power Supply: Corsair Builder 430W 80 PLUS Bronze Certified ATX12V Power Supply ($35.98 @ Newegg)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($16.97 @ Outlet PC)
Total: $488.65
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-03-31 04:48 EDT-0400)
 
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