This is such awesome news I had to register to post here!
Awesome awesome.
One thing I want to say though, is that I hope they use the original airing versions like they did with Gargoyles, and not use the Toon Disney edit versions of all of these shows. I'm afraid they will, but not because they don't want to use them, but because they may not know of the existance of these versions anymore.
It would also be cool to see the original version of some of the edited C'n'D episodes from their original airings with extras, maybe with a disclaimer. But, we're lucky if we even get pre-DA edits.
Gargoyles is lucky because the creator is very active in the show's life and can say something about it. I dunno. I hope someone here on these forums are in the know enough to talk to someone at Disney about this issue.
The Gargoyles DVD was wonderful and I picked it up as soon as it came out. I want to do the same with these.
...I was never a huge fan. But I am very excited that Disney is releasing them because it shows their interest in selling their older but modern TV series'. I CANT WAIT UNTIL THEY ANNOUNCE THE RELEASE OF "DINOSAURS" 
