Justine can always be counted on for the good links over at the Tahmoh Penikett blog. Today it is awesome collection of hi-res imagery from the series:
"Dark-Thoughts.net is maybe not the first site about Battlestar Galactica, but is definitely the first site with high resolution photography of the series. You will find here altogether more then 460 episode and promotion pictures, including some wallpapers and trailers."
[Battlestar Galactica on Blogdigger]