how to get to Holiday Inn at No.1 Ding An Dong Li from Beijing Int Airport?

Hi, I will arrive in Beijing Airport at 11/18/2010 15:55 and stay in the hotel for one night. Next day, I will go to Tianjin for traveling in cruise. I need your help for following questions:

1. How do I go to my hotel - Holiday Inn at No.1 Ding An Dong Li, Beijing from
Beijing Int. Airport?
2. From my hotel to Beijing South Railway Station, how do I go there, by bus or subway?

Thank you for your help!

Regards
Christina Kok