Here are a few big time players whose cards I have.
I have hundreds of other cards. If you're looking for a player give me a name and I'll try to find him. Didn't want to spend more time typing.

Donruss
Bartolo Colon - 20th Anniversary (83) 2001
Juan Encarnacion - 20th Anniversary (89) 2001
Randy Johnson - Highlights No-Hits Tigers (BC-2) 1991
Ryne Sandburg - Donruss 90 (BC-10)
Ruben Sierra - Donruss 90 (174)

Donruss Diamond Kings

Ozzie Guillen (150 1989
Willie Randolph (19) 1989


Fleer
Carl Yastrzemski - 3000 Club
(Illustrates his career on the back and how he reached the milestone) The card is the Number 3000 cut out and features Carl running to first bat in hand and the date "September 12, 1979" the day he hit for 3000. Truly a one of a kind card.
Fleer Traditional
Derek Lowe (100) 2001

Fleer '90
Don Mattingly & Mark McGwire - A.L. All-Stars Superstar Specials (638)
Ryne Sandburg - Players Of The Decade 10th Anniversary (625)

Fleer Ultra
Jason Kendall (35) 1999
John Smoltz (75) 1999

Omega
Derek Lee (99) 1998
John Smoltz (26) 1998

Omega 1999

Jeff Bagwell (103)
Trevor Hoffman (203)

Topps

Alex Rodriguez (1 of 30) Highlights his Major League Record for most homeruns by a shortstop.
Barry Bonds - 50 Years 2001 Collector's Series Card 2 of 18
Barry Zito - 2002 Opening Day (132)
Bob "Bobby' Abreu - 2002 Opening Day (13)
C.C. Sabathia - 2002 Opening Day (66)
Cecil Cooper - Topps Archives 2001 (769)
Craig Biggio - Topps 50 Years Opening Day 2001 (79)
Fred McGriff - 50 Years Opening Day 2001 (39)
Javier Vazquez - 50 Years (446) 2001
Jeromy Burnitz - Topps Stars (27) 2000
Jim Perry - Topps Archives 2001 (Came Autographed) (542)
Jim Thome (17 of 30) 2002
Jose Lima - Topps 50 Years (622) 2001
Rich Aurilia - Opening Day 2001 (145)
Ron Guidry (255) 1989

Score
Jose Guzman - Gold Rush (178) 1993

Skybox
Tom Glavine - Thunder (No62) 1999

Upper Deck Prospects
Mark Grudzielanek Premier Prospects 1995

Upper Deck Collectors Choice
Nolan Ryan (249) 1993

Victory
Barry Zito (27) 2001
Bobby Abreu (486) 2001
Carlos Lee (232) 2001
Chan Ho Park (374) 2001
Christian Guzman (213) 2001
Eric Gagne ((373) 2001
Greg Maddux (275) 2001
Jeff Conine (120) 2001
Jermaine Dye - Victory's Best (24) 2001
Johnny Damond (174) 2001
Jose Valentin (219) 2001
Julio Lugo (265) 2001
Moises Alou (261) 2001
Rafael Palmeiro - Victory's Best (660) 2001
Roberto Alomar - Victory's Best (648) 2001
Roberto Alomar (83) 2001
Tony Batista (52) 2001
Troy Percival (6) 2001
Vladamir Guerrero - Victory's Best (27) 2001

Victory Rookies
Brandon Inge 2001 (585)
Pedro Feliz 2001 (584)
Sun Woo Kim 2001 (567)

Ted Williams
George Wilson - The Negro Leagues (115) 1994
Harold Joseph Traynor (80) 1994
John O'Neil - The Negro Leagues (109) 1994
Leon Day - The Negro Leagues (103) 1994
Moses Walker - The Negro Leagues (114) 1994

Other
Classic Doubles 1998 Edition Starting Lineup Ivan Rodriguez
Hall Of Fame The Sporting News Conlon Collection Johnny Mize (53) 1991
Pacific Collection Ryne Sandberg (256) 1998