Last December, when I was there, there were two options...
1) Use my laptop to dial up to the local ISP from my room... If the number was local, there was no charge..
2) Use the business traveler's PC right off of the main lobby... Usually no one is using it, and all you should have to do is ask someone at the main desk to log in for you... I believe it was Windows 2000, and had the major ISP clients on it such as AOL, Compuserve, etc...