It realy depends what you whant out of your pc $2500 is a huge amount of money to spend just on gameing
http://pcpartpicker.com/p/1nskQ
CPU: Intel Core i5-4670K 3.4GHz Quad-Core Processor ($199.99 @ Microcenter)
CPU Cooler: Phanteks PH-TC14PE 78.1 CFM CPU Cooler ($84.99 @ Newegg)
Motherboard: Asus Maximus VI Hero ATX LGA1150 Motherboard ($200.99 @ SuperBiiz)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1866 Memory ($79.99 @ Newegg)
Storage: Kingston HyperX 3K 240GB 2.5" Solid State Disk ($179.99 @ Microcenter)
Storage: Seagate SV35.5 2TB 3.5" 7200RPM Internal Hard Drive ($104.98 @ Outlet PC)
Video Card: MSI GeForce GTX 780 3GB Video Card ($652.98 @ SuperBiiz)
Case: Fractal Design Define XL R2 (Black Pearl) ATX Full Tower Case ($89.99 @ Microcenter)
Power Supply: SeaSonic 650W 80 PLUS Gold Certified ATX12V Power Supply ($96.13 @ Newegg)
Optical Drive: LG UH12NS30 Blu-Ray Reader, DVD/CD Writer ($39.99 @ Newegg)
Monitor: Asus VE248H 24.0" Monitor ($177.58 @ Newegg)
Monitor: Asus VE248H 24.0" Monitor ($177.58 @ Newegg)
Monitor: Asus VE248H 24.0" Monitor ($177.58 @ Newegg)
Keyboard: Ducky DK1008L-RCLLB Wired Gaming Keyboard ($99.00 @ Mechanical Keyboards)
Mouse: Logitech G600 MMO Gaming Mouse Wired Laser Mouse ($66.52 @ Amazon)
Speakers: Creative Labs Inspire T6160 50W 5.1ch Speakers ($75.99 @ Dell)
Total: $2504.27