Hey Ralph! As David mentioned I am close to completing the set (15 cards away), however that does include Lajoie, 4 Ruths, 1 Gehrig, Dean and some other HOFers.
My set falls between SGC 50-SGC 80. I have been upgrading some of my remaining SGC40s when I can. I feel that is the range that is the most presentable, yet least expensive. I try to get them pre-graded, Joe's Vintage has been a good source for me.
To be honest I really haven't come across any surprises. For some reason it took me forever to acquire a Tommy Thevenow (#36) but mainly because I didn't wanna go out of my fixed price range, and that card always seemed to creep right out of my range.
You can see my collection here:
http://imageevent.com/vanslykefan/pr...0&m=24&w=0&p=0
Let me know if you have any questions, it's an awesome set and a lot of fun to collect.
Rob