Stuart, I just got back from Las Vegas after attending the LVMI convention. Here's some additional options.
There was this guy, Armando Lucero, who did a mind blowing matrix at LVMI. Everyone does a version of the matrix and I've seen it done live a million times a million different ways, including excellent versions by Dean Dill, Kevin Kelly, David Roth, and even Al Schneider himself. But Armando's version completely fooled me. So clean, oh so very clean. He will fry you! Armando is playing at the Excalibur doing walkaround (free show).. call and find out when he's playing (I think late afternoons around 4:30 PM) and make EVERY effort to fit him in your schedule.
You can get a coupon for two comp tix to see Mac King's hilarious comedy magic show if you sign up for Harrah's slot club. King's cloak of invisibility bit is very, very funny.
Also worth seeing is Rick Thomas' afternoon magic show at the Tropicana. Rick's 4 ring routine is so elegant and magical, I went to see his show twice. 2 for 1 coupons for his show can be obtained easily by signing up with Tropican's slot club.