In this case, "loaded" is an understatement. Lot actually has more HOF'ers than non members. Mostly 1970's. Most pre-1980 cards are low or mid-grade, newer cards are higher grade. Key Rookie cards include:
Baseball
1976 Topps #98 Dennis Eckersley HOF 1 EX, 1 VG/EX
1978 Topps #703 Jack Morris HOF 2 EX, 1 VG/EX
1982 Fleer #176 Cal Ripken, Jr HOF NM
1983 Topps #83 Ryne Sandberg HOF 2 NM
1985 Fleer #155 Roger Clemens 2 NM
1985 Fleer #286 Kirby Puckett HOF 1 NM, 1 NM/MT
1985 Topps #181 Roger Clemens 3 NM/MT
1986 Fleer U-20 Jose Canseco NM
1986 Topps Traded #11T Barry Bonds NM
1989 Donruss #33 Ken Griffey, Jr HOF 1 NM/MT, 5 NM, 1 EX
1989 Donruss #642 John Smoltz NM
Basketball
1992 Topps #362 Shaquille O'Neal HOF NM/MT
Also includes card for:
BaseballNolan Ryan HOF, Mike Schmidt HOF, Carl Yastrzemski HOF, Reggie Jackson HOF, Bob Gibson HOF, Pete Rose, George Brett HOF, Johnny Bench HOF and others
FootballFrank Gifford HOF, Fran Tarkenton HOF, Dan Marino HOF, Peyton Manning HOF and more.
Also 2 basketball (including the Shaq tookie mentioned earlier) and 1 hockey card.