Terry's comet must be generating the most widespread professional/amateur interest in ages! It's been in the STEREO fields for a couple of days, but the first 'hi-res' imagery is now coming out. Check out this gif animation:
http://sungrazer.nrl.navy.mil/index....hi1b_Dec11.gif
And this:
http://tinyurl.com/6osbdyt
Cheers -