First you need to setup a pretty simple to install program that should come with the WiFi router, but then it will magically connect, as long as you can get a good signal. The setup is pretty basic, and you can then run other fancy new things like wireless printers and even some speakers, if they are wifi capable.
I applaud you for knowing what you want and sticking with it. Im dealing with her Nook right now. Having had touchscreen toys (no more ipad for me! yay!!) in the past, two things I know - 1. Touchscreens dont last nearly as long as a real computer does and 2. Trying to do "real" work that involves data input with a touchscreen makes my finger joints feel like theyre 88, not 28. Yes, they make keyboards and cases, but carrying around other crap and being super careful of everything simply isnt always an option. Her nook was broken bc her 8 lb kitty stepped on it with a single paw, while it was in the soft case. $70 went bust rather quickly, as I knew it would.
"I am, and ever will be, a white-socks, pocket-protector, nerdy engineer -- born under the second law of thermodynamics, steeped in the steam tables, in love with free-body diagrams, transformed by Laplace, and propelled by compressible flow."