It will really depend on what the other team's needs are and who they have to offer. As mentioned in your other thread, you're best bet is to trade for Rask now and then wait until one of the teams that is competing needs a goaltender. That's how you'll get your best return IMO. Nabokov is getting a little long in the tooth, so his trade value really depends on his ability to win a championship over the next year or two.