MK - I think you're describing classic overtraining. Only you can know if the program you're suggesting is something that you feel will work for you - it certainly sounds very interesting and as you say, if it doesn't work, no harm done, and very possibly some good done simply by resting. If you are unhappy with running - and yet you obviously love it and are very good at it, based on your posts and your times - it could well be that a break is what you most need, both emotionally and physically. Eight weeks is nothing in the grander scheme of things and it would give you time to put your head back where you want it to be. As
EveL said, Boston will always be there and if you qualify and then run Boston in a year when you're happier and healthier, you will enjoy it so much more. I suspect even if you opt not to do a formal program, some sort of rest period, then working back into training mode, sounds like it might be something worth trying. I speak from no experience - I am so far from overtrained, it's not even funny! - but just based on your post, that's my take on it.
EveL - isn't it great when you run a time that makes you smile? I have a goal to break 30 minutes for a 5k, but my best so far is 33:10 (and that made me nearly cry because it's the only time I've broken 35 minutes). Maybe this year will be my year for a sub-30 5k!
Zephyr - I did the C25K a couple of years ago and it's really good for beginning runners. I liked how it built upon the previous week and never pushed too hard - so many people starting out tend to increase the miles too quickly and the C25K really guides you in not doing that. Have you picked a 5k race for your goal? I found that was really motivating for me - I did one nine weeks after I started the program and felt like that was my reward for finishing the program.
As for me - yeah, running in December sucked. My own fault - I just stopped bothering through the holidays. Now I have to start over - well, not entirely, as I've been "off" for about two weeks, but for sure I'll need to do some walk/runs and cut the miles down a bit to get back into the swing of things. Which I MUST do.