+1. Excellent advice.
Mmmm....I hate to threadcrap on your first post, but everything I've learned says that you should never do this. The reason is that you cannot precisely enough control the amount of water that is absorbed by the wood.
The joints on the interior cedar box of your humidor are possibly glued, and you are taking a chance of them becoming loose if they get too wet. Also, if the wood warps at all from being too wet, the lid won't seal and you'll never be able to hold moisture in the humidor.
If you don't get enough water on the cedar lining of your humidor, the wood will be too dry, and actually pull moisture from your cigars instead of giving moisture to them.
I recently charged a new humidor, using a Boveda packet specifically designed for seasoning a humidor (84% RH). It took 14 days, but in the end, using the boveda packet was simplest - just put it in the humidor and put your sticks in 2 weeks later. Now I use a maintenance packet from Boveda. Couldn't be easier to maintain.
I'm certainly not a pro at this - dustin, Matyoka and R2D4 have much more experience at this than I do. Guys, can you lend a hand?
Just my $0.02...
Will