I'm anxiously waiting for my copy from Amazon, another item in my order has delayed the delivery. Ang Lee also did a commentary for HULK but I haven't listened to it.

I finally got my copy and I watched the special features. And they are special, definitely worth more than one viewing.
The interview with the very articulate,Rick Moodie is very interesting. He talks about how he felt when the story he slaved over for so long suddenly became
Ang Lee's The Ice Storm. How the characters he knew intimately became refracted versions of what he wrote, at once the same yet different.
Weathering The Storm features exclusive recent interviews with the main actors: Sigourney Weaver, Joan Allen, Kevin Kline, Christina Ricci, Tobey McGuire and Elijah Wood. They are all candid and revealing with their reminiscences. While watching them it dawned on me that if Brokeback Mountain ever gets the Criterion treatment, Heath would not be included in the series of interviews and I just emotionally deflated...
Other documentaries include "visual essays" featuring the cinematographer, production designer and costume designer. I learned:- that most of the ice in the film was actually biodegradable hair gel! Yep, it was all dippety-doo! -The costumes, which were all original designs, kick-started a worldwide seventies inspired fashion trend. - Why they picked the houses that they did for each family, the cold glass house for the Carvers, the warmer fifties modern house for the Hoods and the grand colonial house for the key party scene. Really interesting stuff.
I still haven't listened to the Ang Lee commentary, I'm saving that for later.
All in all, highly recommended.