You forgot to mention Cahao!
Ceck out his Decargando and Cuba Linda CD's.
Also, just picked up Tito Puente's Tribute to Beny More, the best stuff I've heard not produced on the island.
Oh, and if you wnat some truly amazing jam seesions recorded in the late 70's(among the many greats spanning 3 generations, Nino Rivera and his amplified tres, Ruben Gonzalez on the piano, Pio Levy -wow, what a voice!), pick the Estrellas del Areito Los Heroes 2 CD set.
And I must mention, Estudiantina Invasora. The last of the Estudiantinas, founded around 1910.
Got tons more I can recommend if you like this stuff.
KP