Two good mento bands in Negril:

Sunshine Mento Band – here is youtube video of then performing at Firefly
http://www.youtube.com/watch?v=bwWwq...eature=related

The Overtakers – you can probably contact them thru the Lighthouse Inn on the west end as they were performing there regularly earlier this year.
http://www.youtube.com/watch?v=kyaNK...eature=related


If you want a guitarist/singer, you could contact Stephen West thru Seastar Inn. If he is not available for your date, he could suggest someone for you. He could probably suggest a mento band for you as well.
http://www.youtube.com/watch?v=_VVTf_lR_VI

and here is a link to a prior thread re wedding musicians
http://negril.com/forum/showthread.p...ighlight=ansel