I've been to Whiskey Live 2010 in NY and enjoyed it, but one disclaimer, I had a VIP pass and didn't pay for the ticket. I was just watching Whiskey Live Paris 2010 on utube and they had Stanislav Vadrna as one of the panelists and many people would pay twice that to hear him speak.
I went last year and it was a great event. Hundreds of whiskies of all types to try (Scotch, Bourbon, Rye, and others). In addition, you can pay $10 to go to masterclasses where you get specialty tastings and instructions on specific whiskies. I'll be going again to LA's event next week.
Here's my write up from last year: