I've been twice, but only to the Big Smoke evenings...I had tentative plans to go for the whole weekend program this year, and they are starting to fall apart...sounds like the full program is sold out now anyways, bummer. I don't know of any other way to get tickets to the daytime events.
I've had a great time both times I went. The second time, my and my friend brought our wives and they dressed to kill..and subsequently were escorted to the front of nearly every line to grab cigars and swag for us while my friend and I smoked and drank and took it all in (and had photos taken with Dick Butkus at the Punch booth).