This Viper from Battlestar Galactica includes retractable landing gear and a detailed cockpit.
Thanks to Matthew Verdier, Anne Sullivan, and Felix Greco for the Halloween LEGO Design Contest first prize award (Science Fiction category).
Eric Regner enjoyed this model so much that he converted the LDraw files to 3D Studio Max and animated it. You can see his work on my BrickShelf gallery
CAD file: cviper.mpd