I would add the sapphire tri X 290 4gb
You are from EU , so with EU prices :
http://www.caseking.de/cart_load/8ce560624d8a20571f213ccae38b8529
If you are willing to go second hand , I will be putting my 1231V3 + h100i + tri X 290 + RM 1000w + asus H97 plus up for sale at a good rebate , witch would mean you could get a second 290 and 8gb's of ram and stay withing your budget .
Reasoning : H100i cause it's pretty ,and you can get a pair of nf-f12's to make it silent .
If looks doesn't matter , by all means take a nh-d15 / phantecs / other air cooler for better value .
If you have the cash , go for the i5 , RM 1000w to support crossfire ( you can get by with 850 , but 1000w will make it work at peak efficiency .
If you really want a second 290 , you can easily fit it in , but 1 290 is pefect for 1080p , even 120hz .
1440p is still good with a 290 , but you might want 2 .
Also , just change the case to one that fits you ;)
This is the only reason I did not include it ...
https://www.youtube.com/watch?v=iN2sXD43xH0
I know , but where I live the tri X is the same price as stock , whereas the vapor is ~65€ more , but on caseking it seems to be equal , wich is why I would go with the vapor X
yeah ... it works out to a 35€ difference here.
It's hard to keep track of sometimes.
Just thought I'd "end" this thread with a link to my final list of parts. I guess it isn't 100% final as I haven't really decided on the psu yet as I forgot to take overclocking into account. But here it is anyways: http://pcpartpicker.com/p/KqfFCJ
Looks great so far.
As for the power supply, here are a couple I'd suggest
http://pcpartpicker.com/part/seasonic-power-supply-platinum1000
http://pcpartpicker.com/part/evga-power-supply-120g21000xr
http://pcpartpicker.com/part/cooler-master-power-supply-rsa00ambaj3us
http://pcpartpicker.com/part/corsair-power-supply-rm1000