Okay from what i read.
the system you have specced is a nice lower high end spec, not kick ass unless you take your res into consideration.
OP, What do you want to do with it, are you overclocking? If no you don't even need a "K" there are some differences between the normal i5 2500 and the k aside from the IGP.
Also don't get a big cooler, if your not overclocking its a big waste and a pain to fit no dealt I struggled to fit a titan ( lol) plus you will need new brackets for it( for the one you specced at least.) So another saving.
the blu ray drive, erm okay are you using it to burn/play blu ray if no get a normal one...save yourself oh 50 odd pounds. I made that mistake lucky for me it was only 50
p) Or get a blu ray rom which are quite a bit cheaper.
The SSD while its a good SSD of course, you could upgrade later and put it towards a new screen
and let that 570 stretch its legs a little bit
Pretty much this the spec is overkill if your not wanting to buy a new screen than don't put 1k into this machine cos you do not need to.
listen to these guys, I know they can rip people apart, but that is because some do NOT help themselves. However we can not stop you its your money. We can only advise if you let us.