Not much to do here. I have no idea why did you go to water cooler.
Is that intel mobo good for OC?
Better video card and PSU is good option for you.
GTX 760 is good and fast card. You really do not need bigger psu for one video card.
550w can do the job just fine.
So why not get SSD + Video card?
If you have that much monetthis is maybe best buy.
This is prety desent video card. You OC it to mach GTX 770 or near it.
And it is silent too. Five years warranty is good.
http://pcpartpicker.com/part/zotac-video-card-zt7040110p
Sandisk Ultra Plus is good SSD cheap and reliable. Fast enough.
256GB is really good price /performance buy. Makes you programs run 10* faster than before. Price is same level as the 128GB samsun pro so you get more room for games and other stuff as well
http://pcpartpicker.com/part/sandisk-internal-hard-drive-sdssdhp256gg25
New mobo helps you if you want to OC. Then good buy is Gigabyte Z-77 X-D3H Then you can make most of your cpu Oc and Corsair cooler performance
Then PSU. This is good one if you have old psu. Bit morewattage if you want sli in future.
http://pcpartpicker.com/part/rosewill-power-supply-lightning800
If sli is no go for you then good 550-650w is fine.
This is really good 550w
http://pcpartpicker.com/part/seasonic-power-supply-ssr550rm
650w
http://pcpartpicker.com/part/seasonic-power-supply-ssr650rm
Look corsair new RM PSU. They look really good. 92% efficiency and fan is not spinning under 40% load. So it is really silent.
Other good psu are Rosewill capstone and XFX. Look what is cheaper where you buy parts.
Post case photo somewhere internet and post link here. Top tin box where you write note is screen there opens url place. There you just put link to your photo. But you need to post it somewhere else first.
Like dropbox or something like that. www.dropbox.com/