John,
Welcome to Negril.com man!
Sunsplash ran its course, moving venues every few years until its last real show in 1996 (I went to the last one in Mobay in 1992). But, Reggae Sumfest started as a competing festival in 1993 (I went to that first one in Mobay) and that show has been carrying the reggae banner ever since.
This year's event is taking place in Mobay from July 21st to the 27th - at Catherine Hall. Here is their website link:
http://reggaesumfest.com/