RH Beads: 300+ Ct Footlocker Help?

Could I bother you guys for recommendations for RH beads for a 300+ct footlocker humidor? Any decent place to purchase?

http://www.cigarsinternational.com/p...-HAV300&cat=10
^The Humidor

Specs:
Dimensions are:
- Inside 15.5" x 10.75" x 14.75"
- Outside 16.5" x 11.75" x 16.25"
- Trays 15" x 10" x 1.5"

Thanks sincerely in advance,

Brad