Well thats true, but its always a decicion of new and fast or not that fast but cheaper.
Current newest hardware build:
The i5-3570 is an 2012 "Ivy Bridge" CPU. Go for some i5 or i7 4xxx CPU while these are the current 2013 "Haswell" models.
@The Space Pirate
Very simple:
LGA 1155 socket » Intel "Ivy Bridge" and "Sandy Bridge" CPUs
i3-2xxx
i5-2xxx
i7-2xxx
i3-3xxx
i5-3xxx
i7-3xxx
Attention: There are some SandyBridge and IvyBridge CPUs which also have a "4" modelnumber.
LGA 1150 socket » Intel "Haswell" CPUs and upcoming "Broadwell" CPUs (2014/2015)
i3-4xxx
i5-4xxx
i7-4xxx
Just watch which socket the CPU needs.
About the memory:
Funny story, actually there are like 5 or 6 real memory manufacturers like Hynix, Micron or Samsung. The rest on the market like GSkills, Corsair, Crucial etc. do NOT(!) produce the memory by themselfs! The memory business is simple:
You buy overproduction or defective moduls from the "real" memory manufacturers. They you put the own brand on it and sell it as a GSkill, Corsair, Crucial, etc. brand. Defective moduls are usually also put together. For example when you have to moduls and half of each module's memory chips are defective, then you put them together and make one working module from two broken ones. Easy.
End of story: Everything you buy is the same and there is a minimum difference in what you buy. Nothing you should care about.
back to topic:
Buy DDR3-1866 or DDR3-2133. Haswell CPUs work with this pretty well while DDR3-1333 and DDR3-1600 are not recommended anymore for Haswell while the faster ones doesnt cost much more.
Money saving alternative:
If you dont mind to not have the newest stuff in the street, you can still go for an IvyBridge i5 or i7 and some DDR3-1600 memory aswell as an below 100GBP graphics card and save money. This will still be powerful enough to run Elite in max details and also run other modern games smoothly. But its just not the newest sickest stuff
Oh and check out TOM's current selection of entry-level and mid-range graphics cards:
http://www.tomshardware.co.uk/gaming-graphics-card-review,review-32843-2.html
You can save lot of money here too while not picking the newest, most shiny one