I wouldnt even think of trying to gt a cat5 cable long enough to run around the house with your laptop.
Did you already purchase the laptop? Most new ones come already wireless ready, if not there is a neat little gadget that plugs into a usb port making your computer wireless capable.
http://www.acorncomputers.com/networ...ter_100877.asp
A linksys wireless router is between 40 and 50 bucks, and well worth the money. I have 3 computers in my house and 2 are wireless. It is soooo much nicer to not worry about how to string the cat5 cable to connect to the internet.
http://reviews.cnet.com/routers/link...-30825185.html
I hope this helps ya decide how to go