Linder,
The best Cuban selection and quality are in London or Geneva. Alextor mentioned in a earlier post that tobacconists will ship to the US, even your big retailers; Dunhill, Davidoff & Desmond Sautters (London), but sans the bands and Cuban box. They generally mail the bands separately to you in a envelope. You can call them up ask what they have in stock and they don't even pause when you say ship to the US. It's certainly not as cool of course as getting them like the rest of the world does, but sure as hell safer if you really want them. And expect to pay a premium.
Something to keep in mind is that most Cubans need aging regardless of brand, the tobacco is just too young and don't particularly smoke that well. A few years socked away in a humidor really makes a difference -patience I don't possess!
I used to buy from a London source with bands on and in the original box, until I had a box seized by customs, Romeo & Julieta Churchills no less -guess I was lucky that was all that happened after reading the CA article.
With that said, I agree with the other posters about Dominican, there are plenty of quality and tasty ones out there to choose from.
Good luck in your quest.