Cab Station Co.,Ltd. starts to run limousine buses between Narita and Ueno/Asakusa from Dec. 1st in 2010.
The fee is only 1000JPY for one way. http://supershuttle.jp/
When you use them and get off at Ueno/Asakusa, you can access our hostel by getting
a bus going to [Minamisenju east exit] on at 「Asakusa park 6 region」 and off at 「kiyokawa 2-chome」 or
a bus going to 「Minamisenju carbarn」 on at 「Komagata-bashi」 and off at 「Namida-bashi」.
If you have huge and heavy luggages, use the limousine buses and have a comfortable and cheap access !