I am going to be buying a set of the Sylvania 9006ST for my 1990 LE. Anything special I should know about installing these such as reports of them burning out the (my) stock wiring? Also, as for installing them, do I need to disconnect the battery cable or would just pulling the fuse the headlights run on suffice for that?

I would be greatly appreciative for any insights on this.

Nope. Just remove the old ones and pop the new ones in, should be no problem.

only thing...make sure that you DONOT touch the glass on the new SS bulbs, the oil from your hands will shorten the life of the SS