It is my understanding that Wi-Fi is more expensive and also a little more involved where each computer must somehow be separately configured, but my son's friends have accomplished it and say it is not difficult.
I'm glad things worked out fine. Wi-Fi is more spendy.
But for the most part wireless should work the same as a wired connection. You should connect via DHCP, unless your ISP uses PPPoE.
My point is don't be scared of a wireless connection. It's just as easy as a wired one. And you don't have to deal with "crossover cables".