It looks like nobody has posted this yet and I hate to be a killjoy, but...
I know basketball doesn't lend itself to steroids as much as other sports, but you cannot tell me that out of that many pro athletes nobody is using. And I said roids, not "banned substances" cause then everyone would yell Lebron and Oden at the same time.
I got in no particular order....Shaq, karl malone, D Howard, Kenyon Martin, Chauncey Billups, Lamar Odom, Steve Nash, Amare Stoudamire, Yao Ming, Wang Zhi Zhi, Emeka Okafor, Shawn Marion, Jermaine O'Neal, Gilbert Arenas, Zach Randolph, James Posey, Eddy Curry, Stephon Marbury, Rasheed Wallace, Spree, Kevin Martin, Hakkim Warrik, Michael Redd, Ron Artest, Perk, Rondo, D Wade
and I guess that's it for now