Private tour in Beijing

I am comming to Beijing for a business trip. I arrive Sept 24 at 4:30 pm and am staying at the KunTai Royal Hotel B12, Chaoyangmenwai Street, Beijing, P.R. China Telephone: (86-10)58285588. I would like to have a private tour for Sept 24 in the evening starting at 18:00 for several hours and go to selcted places like:
do a Hutong tour, see the Brids nest and the Icecube...Or other things that you may recommend.
Please suggest a tour and provide the price