My last PC died and I was due for an upgrade. My son is 12 now and I had not built a PC in ages so I thought it would be a fun project. It is my 2nd build and his first.
Everything went pretty well though the cable management could be cleaned up some still. We meant to order a fully modular PSU and received a Semi-Modular one. A friend spotted me the Corsair H60, we saved a few bucks keeping the old DVD drive and the Radeon HD 4870 a while longer, and the copy of windows was $100 so the cost worked out to around $1,100k.
The memory is 1600 MHz but it defaulted to 1333 so we changed the multiplier from 13.3 to 16
The i5-3570K is an unlocked processor. At 3.4 GHz running Prime 95 (stress test) Core Temp (from alcpu) lists it between 58C and 64C. We changed the multiplier to 45 (so 4.5GHz) and it runs between 78C and 84C under Prime 95 typically. It idles at 1.6GHz and about 30C under either setting.
With the water cooler you have the option to set it up front to back or back to front. A lot of people prefer back to front because you are blowing colder air through the radiator but I set it up front to back so it didn't cook me at my desk with warm air. It seems to do OK anyway. The case fan to the left of the hard drive tower is the one that was on the back of the case. It runs a couple degrees cooler at that location than it does if we bolt both fans to the radiator.
We had a lot of fun with the project and I think we are going to do another one soon to replace an older HP he uses.
Efit: I downgraded the Corsair PSU rating to a 2 because it is much louder than the rest of the case fans and significantly louder than the 750W SeaSonic SS-750KM we just added to a similar system.