Mannia Cancun is a private DJ that serves Cancun and the Riviera Maya.
Starting rates for 5 hours of service including lighting and a wireless microphone (as of 4/24/08 ) are $750 USD.
He also has a lighted dance floor and cold fireworks available for an additional cost.
His web site is: MANNIA - Audio, Video e Iluminaci³n Profesional
His e-mail address is: email@example.com or firstname.lastname@example.org
The attached file contains a preliminary list of music that he provides when people inquire about his services.
I know several brides have booked him for their weddings, myself included.
I do not know of anyone who has actually had him for their wedding, but I'm hoping they'll chime in.