Put them on a cool windowsill, (in empty egg boxes if you have them) put them 'eyes' side up, and wait for them to sprout short hairy shoots! Sounds lovely!
Some people don't bother with chitting, so wouldn't worry too much, some people think it gets them off to a better start when you plant them (Shoots facing upwards)
As the plants grow, and they grow quite quickly, pull the earth up around them. Sort of burying the lower part of the plant, so just the top is poking out. This is called earthing up, and will give you a better crop, as well as protect from frost.
This is all you really have to do to potatoes, except dig them up after they have flowered.
Each potatoe planted will give you 10 - 20 new ones, and you don't have to dig all the plants up at once. Once they are ready, you can just go out and dig up another plant every couple of days.