I'd get a used nikon 995 AND A PENTAX 100MM SCOPE WITH THE 38-72X EYE PIECE AND A FIXED 42X HAHAHAHAHA.... DIGISCOPING DUDE!
http://www.birdsofmanitoba.com/
http://www.birdsofmanitoba.com/Baldeagle.htm..... all this from a $400 digital on a $1400 scope ;)