I believe that BangBang57(BB57) will be in the states in August. Although you can contact him to make sure. He provides a walking tour of the low end massage parlors in exchange for donations for the orphanage. I have not done one myself, but there are to many good reports to miss out if you have a chance.
As far as transportation from the airport goes. Interbus is far cheaper. It is $7 from the airport to your hotel. The address is
http://www.interbusonline.com. They will meet you at the airport and take you to your hotel. However they are only a good option leaving the hotel. They require you leave 4 hours ahead going to the airport. Although, you can just tell them your flight is 2 hours later than it actually is.