Originally Posted by milepig

I'm researching this very question about transportaion to the PEN.

You actually have several options:

You can take the N'EX (Narita Express) and if you buy it in combo with their Suica card offer you get a great price along with a starter Tokyo transporation stored value card. You would take this to Tokyo Station and take a cab from there inexpensively, or you can transfer to the metro which doesn't seem worth the effort, or if you aren't too badly loaded down you could walk in - hmmm - ~15 minutes??

You can take the Sky Train to Nippori and transfer to the JR Yamanote line to Yurakucko, from which Hibiya (which is the actual PEN subway station) is listed as a four minute walk. I've read that the Yamanote line is a major commuter line and will be crowded at peak hours.

This site is wonderful for travel planning:

http://www.tokyo-subway.net/english/index.html

You can also take the limousine bus with has a stop at the PEN, the travel times for this option as posted as the longest option and the buses not terribly frequent:

http://www.limousinebus.co.jp/en/pla...hes/index/2/64