I guess I'm realizing, listening to all your concrete solutions, that I'm really ambivalent about it and just not willing to go there yet.
I think that's really the key: you have to be ready to do whatever it takes. I think a lot of people have great suggestions here -- particularly those that involve distractions, lots of cuddling, and the substitution of new routines -- but you just have to be sure, within yourself, that it's time. It's kind of like anything hard, such as losing weight. When you are truly ready, you will be willing to stick to your guns and follow through with the weaning. At that point, it will happen.