SID,
Don't take this wrong, but have you checked the archives -- there should be ample information on this in there, because the question has been asked many times. In a nutshell, there are several such places -- it depends on where in the city you want to be and what your budget is like. For example, if you want to be on the western end of the city, near Av Lincoln, the Delta is not bad -- just across from the Hotel Embajador. Check the archives and if there's nothing for the price and location you desire, come back and ask a more targeted question, ok?
Regards,
Keith