HOFers are all I collect too. I really enjoy the PSA Set Registry for providing friendly competition with other collectors and helping me track my collection. It's also been a great source of communication between collectors (like scottgreb!) and occasionally a place to make trades, purchases and sales.
Here's links to few of my HOF registry sets:
Paleocards - HOF Players Restricted set:
https://www.psacard.com/psasetregist...timeset/126476
Paleocards - HOF Complete Restricted set:
https://www.psacard.com/psasetregist...ishedset/86137
Paleocards - HOF Players Post-48 Autographs set:
https://www.psacard.com/psasetregist...shedset/103358