Sorry about the threadjack, but when someones mentions slippery slope they need to check this out
http://www.youtube.com/watch?v=9YWbgYyGX7g
A tupperdor with 1 or 2 Boveda packs will be fine. Bovedas come in 65 and 70 percent humidity. Think set and forget, the Bovedas will last for a month or so and you won't need a hygrometer.