Comet C/2009 P1 Garradd is well placed in the sky for medium to large telescopes at the moment, it is a slow moving comet so it will be in the skies for some time yet, it is also expected to brighten from its current 8th mag to possible 6th mag.
To find its location you can follow it on this website http://www.heavens-above.com/comet.aspx?cid=C%2F2009%20P1&lat=53.416&lng=-2.940&loc=Liverpool&alt=10&tz=GMT so lets hope for plenty of clear skies in the months ahead.
Comet Garrad, taken 3rd August 2011 with a 10″ f1.5 telescope mainly used for our supernova searches
Comet Garradd, taken 17th August 2011. This is a stacked image 5 x 45sec
You can also see a short animation of the comet taken the same night here
Comet Garradd, by Daniel Kenealy as the comet came close to M71. Imaged with a William Optics 66mm Zenithstar f6, 5 x 45 secs stacked