First, if you intend to keep the house for any significant length of time, get real HW flooring, not that laminated stuff.
It's pretty easy, rent one of those nail guns that you smack with a mallet, and an air compressor if neccesary. Small pieces you may need to pre-drill & use finishing nails, especially between forced air vents & the wall.
Don't be stingy with the nails or you may have sqeaky floors. If you can, check the floor from below to see if there are any wires/pipes/etc. withing about 1/2" of the bottom of the subfloor. The nails will likely penetrate.
Friend of mine, myself, and two other guys (for abot 4 hours) did his kitchen/dining/bathroom/hall room ... about 20' x 15' with lots of cuts, island, angled counter, closet etc. in one long saturday + a few hours on sunday. Looks great!
Chop saw is nice, plus a tablesaw for ripping. You can use a radial arm saw, but I hate ripping hardwood on em.
Don't run the flooring tight against the walls ... leave maybe a quarter inch all the way around and cover it up with molding. If you run it tight, humidity changes can make it buckle.
Get the materials and let them sit inside your house for about two or three weeks prior to installation so you're sure they've come to an equilibrium with your local humidity levels. Install it to wet, you'll get gaps when it dries, to dry, and it could buckle when gets wet.
Its a pretty easy project as those things go, and is one of the few home improvement projects that you can probably add the cost of it directly onto your homes value when its done.