I think it's the easiest way to get to the city, cause driving and parking out there is insane.
Go to:
http://www.mta.nyc.ny.us/lirr/
Look on the map to find the closest train station by you. Take the train all the way to Penn Station. Then find the exit and hail a cab. Tell them the address, and they'll get you there. (or take a subway, but I never can figure those out)
It's relatively safe. As safe as Long Island is anyway. Besides, as I'm slowly finding out: All the freaky people live on the island anyway! Or perhaps all the freaky people just live in East Meadow (I've only lived out here a few weeks, but my neighbors are seriously on crack or something).