Also, I would expect a guy like Casey Blake on a steroid list over a guy like Griffey anyway.
Blake was a long time minor leaguer who struggled to break into the majors. He found moderate success when he finally did, especially in the 2004 season. Steroids were not just used by superstars to enhance their numbers as what usually is associated with 'roids, but probably more from guys on the crisp of becoming major leaguers who need that extra 'push'.
Also, as the writer of the article I just posted said, where is Jason Grimsely?