Wow - flashback!!!
I lusted after a Sante Fe for what seemed like forever before I finally got one (birthday or christmas gift I'm sure). I must have been around 10 or 11. Not sure what characteristic pulled me in (the "tooled-leather look" saddle, the chrome mini-fenders, the perforated plastic handlebar grips?), but I would stop and stare at them every time I was in the local department store. Mine saw a lot of miles and serious abuse over the years. At one point it got BMX bars and knobby-ish tires, way before I ever heard of a mountain bike. Not sure what ever happened to it.
Mine had Shimano Positron II shifter and rear derailleur. It was a two cable setup and had indexing. Worked OK as I recall but wasn't easy to adjust.
Enjoy it!