Originally Posted by abmj-jr

This seems like the best bet.

Since you will be in Tokyo for the rest of your stay, the 14-day Rail Pass would be a waste. It would be of little use inside Tokyo.

Suica and PASMO are virtually identical so either will work. If your arrival/departure airport is NRT, the Narita Express-Suica combo deal might save you some money.

I have never found the green car to be necessary but at those times, the peace of mind might be worth the extra. Green car tends to fill up less often than the regular cars. I might chance it and save the money but a first-timer might feel better with it.