A keyword search on the word "beads" will give you a lot of threads with good info. To get you started either http://heartfeltindustries.com/ or http://www.cigarmony.com/ are two good places to get humidity beads from. I would recommend the 65% beads.

As far as cellophane on or off, that's a personal preference. I would recommend that you leave your cigars in cello at least until you get a better humidification system. The cello will help keep the wrapper protected from the r/h swings.