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

CPU Cooler: Scythe Katana 4

Motherboard: AS Rock Z77 Pro4

RAM: Corsair XMS3 8GB DDR-3 1600

Storage: Samsung Spinpoint F3 HD103SJ

Graphics Card: EVGA GeForce GTX680 SuperClocked 2048MB GDDR5

Power Supply: BeQuiet 480 Watt Straight Power E9 CM
(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?