Actually nuking them is the way to go. I really like Sierra Nevada beer, and their bottles but the labels are a bisitch to remove. So this is what I do:
Soak them in warm water at least a few minutes, longer is better. Then pour out any water and pop them in the microwave for about 20 seconds or so. Quickly remove them and the label should come right off. Let the bottles cool a little then use a scrubby pad to remove the remaining gum -it comes right off. DONE!
It sounds like a PIA but its not so bad really and its a lot better then using a razor blade or wire brush IMO.