Dear Julinda,
I'm not teacher but I think some disciplines are not adapted to be educated with a computer. A 100% computed based education is not a pretty good idea. Just an opinion. I feel this will be too much theoretic.
Also, the spread (popularisation) of this method is quite inequitable regarding students from the third world. If they have only one PC for all the school, it's close to a miracle. I prefer not thinking of a broad band connexion.
Denesha