Nik wrote:

What would you do in the following situtation:

You are approaching a non towered field, communicate right and all that
stuff, your on final, suddenly a cessna pulls up and starts it's take
off roll.

You go around. I make a standard procedure of keeping to the right of the
runway during all go-arounds, sometimes informally called a "sidestep." At
a towered field you may be asked to go around and not told why. Keeping
right lets you keep the runway in view out your left window and gets you
out of the way of any other aircraft that may be landing/taking off until
you can maintain visual contact to avoid them.

You don't have to go far to the right, just enough to allow you to see the
runway and be out of the way for any fast climbers.

It's normal to stay to the RIGHT of the runway. This is especially useful
when you find yourself on a nice final approach and then notice that some
clown decided to land downwind on the opposing runway. Both aircraft can
go around and be out of each other's way and be safe.

Obviously if there are parallel runways in use or other special
circumstances (obstacles) the procedure may differ.

Practice go-arounds often at different phases of landing. Know what your
airplane requires (flaps set x degrees? Carb heat off? Mixture is already
rich? Prop is already forward? Gear up? Full power? Spoilers
retracted?) by heart.