check out king jammy, on myspace or google, he produce a lot of artist in the 80's, its a good place to start cause youl get a whole bunch of artist names,,,,,,,,,,,,sly&robbie are real heavy to, they have been resposible for some major reggae tunes. also definnatly check out yellowman,,,specifically the album just cool, (give me your email an ill send it to you, at least a couple of songs) after bob marley he was the most succesfull reggae(dancehall) artist in jamaica. this is a good site for discovering ill stuff,
http://bigupradio.com/ click on the playlist option for either of the channels, roots station or dancehall station.....and it list what they have playing at the current moment.....reggae is a beautifull music....enjoy.