Going cold turkey is definitely the way to go...I've found the first day or two can be tough, but soon my girls don't even notice, and they are the same ages as your kiddos. We recently moved to a place with free cable, and got sucked into the addiction again, but now we've unplugged it again, and we're not plugging it in until the Olympics.

I let them watch movies on the computer on occasion (they're watching Doctor Who right now, actually) but not much. An hour or two every few days usually kills their cravings, and it's totally manageable. Not to mention, they think it's special.

They have no problem entertaining themselves, as they have lots of toys. Now and then I have to suggest something to them, but not often.
