I downgraded my service to the Digital Economy plans. My only concern is that my internet speed won't be sufficient for the amount of streaming video I watch. But if I find that it's not good enough, I'll call them back and change my service again. But going with this service plan means I get to keep a lot of the channels I would have missed the most (the networks, USA, Comedy Central, Weather Channel) but still save a shitload of money. Previously I was paying about $125 a month, now I'll be paying about $67. That's a savings of $58 a month, or $696 a year.
I'm watching an episode of Bones on Hulu Plus now, and I don't really notice any discernible difference. But for the amount of savings I'm getting without sacrificing too many channels, I think I can live with slower internet.
EDIT: My internet seems to have already been downgraded (according to speedtest.net), but I still seem to have all of my channels. The customer service rep I talked to did say it may take up to 24 hours for all the changes to be applied to my account, so i'll update again when it's all said and done.
UPDATE: Currently downloading the system update for my PS3. Definitely noticing the slower internet here. It's kind of annoyingly slow since I'm so used to the faster internet, but I just keep saying to myself "$700 a year." Takes the edge off my annoyance.