The classic way to pull into Vegas is in a car (preferably a Red Shark of a car) or on a Greyhound bus. If you travel by rail, you'll end up on a bus anyway, as trains only reach as far as California and Arizona. If you're coming from elswhere in the US, Canada or Europe, you can usually fly direct into McCarran International Airport.
Vegas' compact centre and devotion to the customer make getting around a breeze. It's easy to navigate your way around either on foot (if you can stand the desert heat) or in a car. Taxis are waiting for your lightest gesture; you can also jump on the cheap and efficient buses or on one of the trolleys (air-conditioned!) that chug up and down the Strip.