if you have not done panos before i would spend some time learning how to make one with a fisheye and practice. if you have no equipment already what would be needed to make a high rez pano the RIGHT way would be pretty expensive. higher rez = longer lens. longer lens=more photos. more photos=more work. the really large panos you may have seen from London and Prague were shot with an automatic pano head for them kind presicion is key.