i've started running 2-3 Caps in my board. i'm testing one in the main.
also, i'm now running 3 REB and 1 Pyroblast in the board to combat Cabal Therapy (don't want to lose all of them to one common card...)
here is how i boarded at National's:
http://www.themanadrain.com/cgi-bin....ry99825contrary to what smmenen suggests, i boarded out my Meditate's a lot. i'm not disagreeing with him (in fact i am inclined to agree that the Meditate's should stay in no matter what), but at the time i felt that giving the opponent an extra turn would hurt me more than help. I only lost to GAT in the finals using this strategy, and those games were over in about 3 turns each (i went 1-2).
i think boarding out the Meditates is something that should be looked at on a case-by-case basis. Know your metagame and don't be afraid to board out some key cards if you can put something in that will win the match.
--dave.