$2,000 system that I built to replace my old 775 system, mainly used for Gaming and Work.
I was able to get some huge discounts on a few items keeping the price right around $2,000 without CA state tax that I (annoyingly) had to pay when ordering most of my gear through amazon.
Probably the most expensive item was the motherboard, and for good reason; 4-Way SLI/CFX and On-board Thunderbolt is just the tip of the iceberg when it comes to this boards feature set and flexibility that I need/want for upgrading and work.
16GB Corsair Dominator Platinum 1600Mhz
Maximus V Extreme
H100 with SP120 Fans
Samsung 840 Pro 256GB SSD
1TB WD Black Caviar