Your Amazon wishlist link doesn't work.
Why doesn't it work?
It asks me to log in to view the wishlist. Maybe you could just post the details of the parts here.
Evidently you did not set the wishlist privacy settings to "public."
I set it to give access to those with the link.
Post the perma-link to the wishlist then, not the generic Amazon link.
I made it public anyway now.
You still need to post the link to the wishlist; the link you've posted earlier goes to a generic wishlist link.
What brand is the current PSU you have? That's the only potential issue I see, aside from the mATX motherboard; I've seen heat problems with quad-core CPUs on mATX boards, although these were older boards and CPUs, and I suspect you might probably be fine with newer components. Someone else can give more/better insight into this, I guess.
Also, why buy the HD 6870? An HD 78xx series card would be a better buy.
Erm, my Dad keeps claiming that the brand isn't that important, but he doesn't remember a specific name, but it could be branded.
What makes the card better?
Brand is important since it's usually tied into build quality; a low-end PSU can crap out spectacularly, while killing other components.
Disregard that; I changed the post since it was a 560SE, not a vanilla 560.
You sure? The GPU only comes about 100 behind it on Passmark at the expense of £20 which is good, and because the HD 78xx series are all about £200 :/
I would say dont water cool for now. that will save you a bit of money. just go with a hyper 212 evo until you get some extra spare money. go for a core i5 3570K. and just get a amd card for now because they recently cut prices, and drivers 12.8 match it up with nvidia cards. also you should use that saved money to get a samsung 830 ssd because they are fast and reliable. also go with a modular power supply, that is at least silver certified(bronze if you really have to.). and if you are gonna sli, go with a 850w, otherwise go 750 if you are not. also get a modular if your case does not have good cable management. corsair offer the most reliable psu in my opinion. good luck with your build.
Passmark is a synthetic benchmark, which is not always indicative of real-world performance; as I stated earlier, some of the information can be grossly erroneous.
Look for reviews on well-known sites like this one (Techspot), HardOCP, Guru of 3D, techpowerup!, Anandtech, bit-tech, HEXUS, LegitReviews and Tom's Hardware, among others, and check performance for yourself before deciding. Quite often, the games you'd want to play the most often can decide what card is better to buy for you.
I like the look of what you've picked on Amazon. Should be a good performer. And definitely don't jump into water cooling right now. The Phenom IIs OC very well on air.
I've got my 955BE at 3.9GHz on an NH-D14. Hits 44°C while running OCCT.
Also, Passmark is a pretty rubbish guide to be using for GPU performance. Anandtech's bench utility is the best.
Furthermore, Corsair aren't the most reliable out there. I'd say XFX are. All their PSU's are produced by Seasonic (god-tier PSU manufacturer). Some of Corsair's PSU's are pretty awful (CX series).
The CX series is low-end, but certainly not awful; FSP's Epsilon platform comes to mind.
XFX are among the best out there primarily due to the choice of a top-tier OEM like Seasonic.
This site is extremely useful when choosing a power supply: