FYI: I was fortunate to have the Toshiba cable (IDX 80 LF-3292P) in my LE1700 despite the fact that I had a Hitachi 30GB HDD. This cable is completely compatible with my new Samsung HDD.
All is very well with the world. I think I'm on my way to becoming a techno-geek!
(Thank you all for your help as I progressed through the stages of pulling all my hair out.)