tlmck said:
As a long time AMD fan I have to say that Intel is the way to go. You can look up that CPU on this chart to see how it stacks up.
http://www.tomshardware.com/reviews/gaming-cpu-overcloc...
Even my lowly Core i3-2100 would be a match for the AMD FX. For overclocking, the defacto standard right now is the Intel Core i5-2500k and an ASUS or Gigabyte z68 motherboard. Some find the older P67 boards acceptable as well.
While that ram may look really cool, it is not so cool since it will interfere with most aftermarket CPU heatsinks required for overclocking. It is also just made to look fancy. The heatsinks are really no better than the standard variety. You could either go with the standard profile Vengeance or Kingston HyperX. You could also go with Gskill RipJaws which is very popular right now. It has shorter finned heatsinks.
I do not know what brands of power supply you have available, but it needs to be at least 80plus Bronze certified, and from a good maker like Antec, Corsair, Seasonic, Silverstone, or XFX. Here in the US, XFX is a very good deal right now. And 1000 watts would certainly not hurt anything. The system will only use what it needs and modern certified supplies are efficient at low medium and high levels. Minimum for dual 580 cards would be 850 watts.
If you have other brands of video cards available to you, that would be preferable. ECS is not the best. For Nvidia cards, the best are EVGA, MSI, XFX, and ASUS. Brands such as Gigabyte, PNY, and Zotac are OK also, just not quite as good. The lower end would be ECS and Galaxy.
I have two systems. One runs off the AMD Phenom II X6 and the other runs off the Core i3-2120. I actually prefer the i3 system and like the motherboard and chipset better. As soon as I start getting some money I might switch it out to the i5-3890K (?) when it's available or the new SB-E CPU but even that build will be quite expensive even with MB/CPU/RAM prices the way they are.. I might just throw an FX-8150 in there instead just to see how it compares. The thing is there's a lot of mixed reviews concerning the FX - it seems people either really love it or really hate it. Tom's had a great breakdown of the CPU and the architecture when it was released, and I suggest reading that before jumping into FX territory:
http://www.tomshardware.com/reviews/fx-8150-zambezi-bul...
I definitely agree about the RAM and PSU choices. The tall heat sinks on RAM really don't do anything and they will make installing any aftermarket coolers you plan to use extremely difficult. But the thing is you don't need a 1K+ watt PSU on any system unless you're running say 3 580TIs in SLI or like 1,000 hard drives. You can get by with way less. The system draws the power it needs when it needs it.
As far as video cards go the brands you listed are good. I don't really recommend video cards from the big motherboard manufacturers like MSI and Asus because their support and RMA departments aren't that great (I've dealt with both of them and it's not fun). The smaller, more focused vendors like EVGA, XFX, and Sapphire tend to not only have better products but they have the best service and support departments on top of that. That's a key factor in the brands I pick because if something goes wrong, I want a replacement ASAP.