A newly discovered comet will be at its brightest in mid October 2006. It is known as Comet Swan and was jointly discovered by R. D. Matson (Irvine, CA), M. Mattiazzo (Australia).
The bad news is you'll need to use small binocular or better still a telescope for best viewing, as it will just be invisible to the naked eye.
The best time to view the comet will be in the early evening in late October. At that time, it will be located near the constellation of Hercules, low in the western sky.
I'll definitely be keeping an eye on this comet.