To tell you the truth, either way is going to be easy and secure.
Don't let wireless intimidate you. I only went with garden hose for conduit, and all that because the neighbors were tight and didn't want to buy wireless cards.
The ups of wirless.
#1 you can move the computer anywhere.
#2 you can get wireless internet at starbucks/etc.
#3 can hook up to a friends network.
#4 your friends can have internet on their laptop at your house.
#5 no diggin, no wires
The ups of hardwired
#1 about $50 cheaper
I was trying to think of the upside of being hardwired, and I really can't really find any major benifiets.
Wireless is easy to set up and secure it also only takes a few minutes.
I think you could probably get setup for under $150 maybe $25 more than a hardwired setup to tell you the truth.