We finally had a clear (but still cold) night here, so I drove about 20 minutes out of the city to try and grab a few shots. I haven't had any time to stack the shots or play around with them much in LR or PS, but here's an 8 second sub at ISO 1600, 300mm at f4, slightly cropped and enhanced in LR.

I did all my Pan-Starrs shots piggyback, with a very rough alignment. The comet itself wasn't too impressive; I couldn't make it out with my naked eye (I'm assuming because of the moon), and it was below the horizon within 90 minutes after sunset, so there was very little working time. I wasn't out there too long as it dropped down to -30 plus a brutal wind, which isn't a fun experience when you're standing on bald prairie.
Interested to see what you guys got, and if you have any tips on stacking or post processing comet shots.