Mines a bit old but...

RAM: 16GB Corsair DDR3
GPU: Gigabyte GTX 580
CPU: Intel Core i5 2500K Unlocked
Case: Coolermaster Cosmos S
Monitors: 2x 24" Samsung LED Series 6
OS SSD: 64GB SSD
Storage: 1TB Western Digital Caviar Black
Extra HDD: 1TB EastWest Complete Composers Collection
PSU: 750W

I'd love to build a new one with Intel's new CPU, and just stick to 1x 27" monitor rather than having two. I rarely need the second now that I don't work on 3D stuff anymore...