The current state of a rig that's coming up on two years old. I've been upgrading parts here and there from what started as the minimum i7 2600k build (no graphics card even). I then bought a 5770, tried out a 6770 in CF with that (didn't like it), upgraded to a 6870, then went with one 7970 and another a few months later. Again, CF had pretty horrid drivers, so the other 7970 sat in a box for about 8 months until I retried CF with the new Frame Pacing drivers (works as well as RadeonPro without the hassle!). The current GPUs are actually from different brands, Sapphire and Gigabyte, although I couldn't choose it on here.
I've had pretty good luck with all of the parts working well, although I recently had to step down my CPU from 4.6 to 4.2Ghz. I use this mainly for gaming, although I used to do a lot of video capture/editing on it, hence the initial barebones build and the capture card.
It's served me well, and the long buildtime helps offset the high cost of everything.