First time building - Help with my parts

Hey guys,
I just joined your forum, because a friend of mine recommended it and told me you give solid advice :)
So first of all: Hello everyone.

Today I am posting here because this year will be the first time I actually want to build a gaming PC myself.
My budget is around 1000€ for the PC itself, I will buy the "extras" another time or use my old stuff.
Because it is my first time building I am unsure if the parts I chose will actually work together smoothly. 
I will give you the list of my selected parts, if you want could you please comment on it and tell me how I can improve my build or give recommendations for other parts?
Sadly I can't buy any parts from newegg, beacause I live in Germany...
Anyways, here is my list :)

Sorry for the formatting issues, the preview looked horrible and I could'nt fix it... God I feel retarded...


CPU: Intel Core i5-3570K
http://www.amazon.com/Intel-Core-i5-3570K-Quad-Core-Processor/dp/B007SZ0E1K/ref=sr_1_1?ie=UTF8&qid=1349116059&sr=8-1&keywords=3570

CPU Cooler: Scythe Katana 4
http://www.amazon.com/Scythe-Katana-Universal-CPU-Cooler/dp/B00807OHYU/ref=sr_1_1?s=electronics&ie=UTF8&qid=1349116139&sr=1-1&keywords=scythe+katana+4

Motherboard: AS Rock Z77 Pro4
http://www.amazon.com/LGA1155-Z77-CrossFireX-Motherboard-PRO4/dp/B007MHC6K6/ref=sr_1_1?s=electronics&ie=UTF8&qid=1349116240&sr=1-1&keywords=asrock+z77+pro4

RAM: Corsair XMS3 8GB DDR-3 1600
http://www.amazon.com/Corsair-PC3-12800-1600MHz-240-Pin-Channel/dp/B005G9C4K4/ref=sr_1_1?s=electronics&ie=UTF8&qid=1349116976&sr=1-1&keywords=Corsair+XMS3+8Gb+DDR-3+1600

Storage: Samsung Spinpoint F3 HD103SJ
http://www.amazon.com/Samsung-Spinpoint-3-5-Inch-Internal-HD103SJ/dp/B002MQC0P8/ref=sr_1_2?s=electronics&ie=UTF8&qid=1349117092&sr=1-2&keywords=samsung+spinpoint+f3+hd103sj

Graphics Card: EVGA GeForce GTX680 SuperClocked 2048MB GDDR5
http://www.amazon.com/EVGA-SuperClocked-DisplayPort-Graphics-02G-P4-2682-KR/dp/B007KC1R9E/ref=sr_1_2?s=electronics&ie=UTF8&qid=1349117193&sr=1-2&keywords=Geforce+GTX+680

Power Supply: BeQuiet 480 Watt Straight Power E9 CM
http://www.mindfactory.de/product_info.php/info/p768614_480-Watt-be-quiet--Straight-Power-E9-CM-Modular-80--Gold.html
(Sorry for German Link, but I could not find it on Amazon...)

Case: I am not sure yet, Advice appreciated ;)

DVD Burner: Still have one, no need for a new one 


So what do you think? Is it ok? Does everything work so far?
Thank you so much for answers :) 

Definitely go with at least a 750W modular power supply, that way it'll not be working too stressfully and you will have plenty of room for upgrades in the future.
As for a case, depending on your overall budget left, perhaps a coolermaster HAF XM?

This is a german site correct?
http://www.informatique.nl/componenten/