Need a desktop for League of Legends gaming.

I need everything for a computer I will be building by myself. First time ever. Kind of nervous about it but everyone says its a walk through the park so I will give it a shot.

Do not need a monitor need everything else. Building a whole new computer.

Budget:
More specific use (what games, what programs):
Planned time until purchase:
Do you need an Operating System?:
Do you have any specific preferred components?:
Do you need a sound or wireless card?:
Do you want stock cooling or do you plan on overclocking?:
Do you need a monitor? mouse? keyboard?:
Zip code/location? (Shipping costs):

Need a Optical Drive also to download dvd's (games) and other stuff along those lines as well.