It's not so much the date - it's the grade. Cents from recent years in MS64 are extremely common. You can buy entire rolls of BU cents for just over a dollar. And most of the coins in the roll will grade MS63 or MS64.
Just a quick question do you have these coins or are you looking for them? I ask because there is no confirmation that a plated ( thats what the "P" stands for) penny from 2000 even exists, and since it has the "W" that usually means it came from some kind of collectors set (RCM uses "W" for Winnipeg and "O" or nothing at all for Ottawa in years when the mint makes collectors sets at both mints except for 1996 when they just altered the places of the coins in the Proof-Like set). Since no plated coins were issued in any sets, and circulation plated coins are only rumours, this coin should not exist (until proven otherwise of course) As for the 2001P once again since 2001 Plated pennies for general circulation are only rumours, it most likley would have to come from a collectors set so generally it would go for about 5 cents.
Are you thinking of US cents? because to find a roll of 2001P Canadian pennies would be difficult, because that would mean somebody opened up 50 Uncirculated Sets.