$550 gaming pc build

I have been very interested in the $550 gaming pc build but i have run into a view problems as i'm new to computers. The problem is that there is no ethernet connection close to where i would have to put my pc, i was wondering if there is some sort of wifi card i could use instead?

Thank you for anyone that could help, and sorry if this is a ridiculas question. 

Yes, there are several types of wireless adapters that come as internal cards or usb dongles.  Pick whatever fits your bill.