Good call on the Lindsey's, Ted. Those are definitely the hot setup for our cars. Another good page is here:
http://members.rennlist.org/911pcars/WheelWts.html
It has wheel weights, offset, backspacing, etc for all the factory wheels and most of the popular aftermarket ones as well. There are more helpful links at the bottom of that page (one of which is to the one you posted from Bill V).
I will eventually be getting some of the Lindseys for track use when the time comes. I have spoken to Mike Lindsey and he is very helpful.
Keep us posted.