CPU: Intel Core i5 2500K @ 4 GHz ... it goes a bit higher, but I don't like the voltages it needs to get there
CPU-Cooler: Scythe Mugen 3
MB: Asus P8Z68-V
RAM: 4 x 4 GB Corsair Vengeance LP (1600 MHz)
GPU: Asus HD7950-DC2T-3GD5-V2 @ 1000/1500 MHz
PSU: be quiet!, Dark Power Pro 10, 850W
SC: Asus Xonar Essence STX
System-Drive: Crucial m4 64 GB
Storage-Drives: 2 x Samsung HD103UJ (1 TB) @ Raid0 & 1 x Samsung HD753LJ (750 GB)
Case: Fractal Design Define R4 (PB) ... fans: be quiet! SilentWings 2
Monitor: Dell U2713HM
I like my Rig right now - it does what I want it to do and it runs cool and quiet. The only thing I might change in the near future are my storage drives - those are pretty slow by today's standard and are probably the loudest component @ idle.