Using needles for beading can be painful - who hasn't pricked their fingers at some time? One solution is to cut the end off the needle and file it smooth.
Another option is to buy tapestry needles - many of these have blunt tips to them and are much safer to use!
This is a wonderful resource for learning about beading. It covers everything you need to know to get started in beading, as well as lots of more advanced hints and ideas.