Approx 60-70% of the Hiltons seem to have some nice variety (Cais, NCWS etc) costing $9.95/24 hours. It usually works well, but be aware it sometimes fails part way through the 24 hr. I have called and gotten full credit from Cais in one situation after it failed. Most of the Hilton hotel business centers have computers which have a free high speed connection to the web.
It is totally free at the Hilton Garden Inn, Mountain View Ca (I believe that is the location), and they nicely allowed me to borrow a RJ-45 cord too. LAN cards are also available. I downloaded IE 5.5 at 91.2 KB/sec (ie slighty less than 1 megabits/sec).
Please note out-going email is usually NOT permitted on any of the hotel high speed systems I am aware of. You have to revert to a dial-up connection for this.