(Note: Speaking of Boston, and their equally transparent attempt to land Troy Murphy once he's been bought out by Golden State, there is no date by which free agents must be signed to be eligible for the playoffs. This is proven by the historical cases of players such as Lawrence Funderburke with Chicago in 2005, Derrick Zimmerman and John Thomas in 2006, and the oft-mentioned Anthony Carter with Denver in 2007. There is only a waive-by date. Players on an NBA roster on March 1st can only play in the playoffs with the team whose roster they are on. If they're a free agent on that date, or signed with a non-NBA team? They're eligible for anyone. Go nuts.)
Note: Non-US teams that the player
has played for are, unless stated otherwise, from the top division in
that nation. If a league or division name is expressly stated, it's not
the top division. The only exceptions to this are the rare occasions where
no one league is said to be above the other, such as with the JBL/BJ League
split in Japan.