This is the best site for all your Laser experiment needs, many people will help you here. Oh and like Flaminpyro said "Don't put and eye out" get some good safety glasses.
Cheers :beer:
Welcome to the forum!!! Between this site and Sam's Laser Faq you have the two best sites for DIY laser info. You can find everything you need here, from diodes to drivers to hosts to special lenses to complete builds. Of course there's tons of info here, too.