Nice overclock though quite confusing to read until I came to the conclusion that by 3GHz you mean a 3000 rating. That really needs to be corrected or the EEs will have you drawn and quartered before you can say IPC.
I used to overclock a little. Mainly for fun. Now I run at stock because there are such diminishing returns to overlclocking. You end up spending the money on over-rated RAM and PSUs and whatnots to make it work. In the end it comes out the same as ponying up the extra cash for the CPU and then you have the manufacturer's guarantee that it will work and continue working (nothing is worse than thinking you shaved off a few minutes on computation by overclocking only to have the system unexpectedly fail, causing you to spend 3 hours on what would have been a 2 hour job at stock/safe speeds).
Still, nice to see the Athlon 64s doing so well on air (although I doubt much more can be squeezed out with water cooling)..
That CPU cooler looks interesting. Very 'BTX' looking. Can it be used in a silent configuration to give better than average cooling at low noise? I'm all for directional cooling and letting the fans work in unison instead of fighting each other. More info on the HSF would be appreciated.