Edited Champions build further, this should be as good as you can get for your needs and budget.
http://pcpartpicker.com/user/Tokthree/saved/VJkH99Choose a case you like that fits your budget and add a wireless card if you're
absolutely positive you cannot get an ethernet cable routed to your computer, you will get infinitely superior performance from a dedicated ethernet cable over a wireless card.
Also, Champion, for future reference; stop suggesting that people buy Western Digital RE drives. They're intended for NAS and surveillance system usage, not for things that anyone on this forum does unless they specifically state otherwise.