Well, For a 2500$ compact build this is my recommendation (It's not that small, but it's easy to move around) :
[PCPartPicker part list](http://pcpartpicker.com/p/JKjfjX) / [Price breakdown by merchant](http://pcpartpicker.com/p/JKjfjX/by_merchant/)
CPU: Intel Core i7-5820K 3.3GHz 6-Core Processor ($372.95 @ SuperBiiz )
CPU Cooler: Swiftech H220-X 55.0 CFM Liquid CPU Cooler ( $149.99 @ Micro Center )
Motherboard: ASRock Fatal1ty X99M Killer Micro ATX LGA2011-3 Motherboard ($193.98 @ Newegg )
Memory: G.Skill Ripjaws 4 series 16GB (4 x 4GB) DDR4-2400 Memory ($190.98 @ Newegg)
Storage: Samsung 850 EVO-Series 500GB 2.5" Solid State Drive ($189.99 @ Amazon)
Storage: Western Digital BLACK SERIES 4TB 3.5" 7200RPM Internal Hard Drive ($199.99 @ Amazon)
Video Card: Asus GeForce GTX 980 4GB STRIX Video Card ($549.99 @ SuperBiiz)
Case: Fractal Design Define R5 w/Window (Black) ATX Mid Tower Case ($117.99 @ SuperBiiz)
Power Supply: Corsair 1000W 80+ Platinum Certified Fully-Modular ATX Power Supply ($227.98 @ Newegg)
Monitor: Asus VX239H 60Hz 23.0" Monitor (?)
Keyboard: Corsair K70 RGB Wired Gaming Keyboard ($169.00 @ NCIX US )
Total: $2362.84
Link:
http://pcpartpicker.com/p/JKjfjX
And you absolutely don't need a xeon, it's not for you, this is the build to go with, trust me.