Original poster here:
Thanks for all your replies; today I simply put a large bucket over him when I went into the coop so that I could take care of the hens without him attacking, which seemed to work well. The problem is just that it's fairly tricky to trap him under the bucket without him getting some hits in first.
The squirt gun/spray bottle technique sounds like a good idea, the only thing I'm concerned about is that the temperature is currently below freezing and will most likely remain that way until sometime next April/May, so squirting him in the face with water in freezing temperatures seems like it could do some harm if it then freezes onto his face/beak/eyes/comb afterward.
The picking-him-up-and-carrying-him-around idea also sounds like it could work, I'll try that tomorrow morning. The problem with that is just picking him up; he doesn't bite or peck, but he kicks with his feet, and his spurs are what do the most damage. However, I'll try throwing a towel over him and then picking him up and see how that works.
As for killing him/making him into soup, again, I raised him from an egg, so killing him after all this time and effort doesn't really appeal to me, especially due to the fact that I've had a rather unpleasant string of chicken deaths lately...two due to the neighbor's dog getting loose (one of the chickens survived, I nursed it back to health in the guest bedroom of my house, let it back in and the same dog came back again and finished the job a month later), one due to prolapse after laying an egg, and two due to mysterious causes which I assume have something to do with old age, disease or cold temperatures.
Plus, he's good with the hens now, even the tiny golden and silver Sebrights which are 1/4 of his size, and rather than attack any of them like he did at first, he's been huddling up with them at night and guarding them. I also like to wake up to his crowing in the morning, it's become somewhat of a daily occurrence over the last year that I've gotten used to. If some of these methods still don't work after another couple weeks or so, though, I'll find a different home for him somehow, since it's not worth the effort or scars to keep him around anymore.
Thanks again for all your help, here are a few pictures of him as a chick (August 2006).