[BamBam]

I just got my new Lexington cabinet Humidor and have my sticks in it. I am using a Hydra in it for RH. It is running off and on quite frequently though. In order to stop this I think I am going to have to break down and buy some RH Beads. I have never used these before and have no idea where to get them or how much I need. The interior of the humidor is approximately 5.5 square feet. I want to keep the RH at 65%.

So to sum it all up:
1) Where can I get the best deal on the beads?
2) How much do I need?
3) I would like to use them in the thin mesh bag, where can I get these?