Dakingfisher,

You'll want to use a lure that has some action of it's own. Here's the setup I have had the best luck with:

12' of #80 Tuffline. Large ball-bearing swivel on one end, full sized green Hotspot flasher with the leader end swivels removed on the other.

Attatch ball bearing swivel to downrigger weight just like Andy described above. I like to set my stacker clip about 8 to 10' above. This allows the Hotspot to rotate fully, without tangling the lure. I use a 3.5" chartreuse/chrome Coyote spoon as my lure of choice. Be sure to tie a bead chain swivel onto your mainline about 4' up, to keep the line from twisting at higher trolling speeds. Set the lure back so it's about 2 to 3' farther back than the flasher. Clip it in to the release, lower to the desired depth, and get ready to reel in those silvers.