[IMJ]

Acid free bags and halfback boards for your standard stuff. BCW or other standard brands are fine.
Mylite 2's and fullbacks for your hardcore investment books. Gerber is the way to go with these.
If you can't afford fullbacks, buy silver age mylar and silver age backerboards. Double up the acid free backing boards at two per book for rigidity.

Normal comic boxes, long or short for standard storage.
Magazine box for your investment books that are stored in the fullbacks or in doubled up silver age boards.
BCW Plastic Tote for transport if you are taking them somewhere.

Microchamber paper your gold, silver and bronze age books that are worth something. If you buy backer boards that are coated on one side, then put them in the bag with the shiny, slick side touching the comic.
As webz mentions above, there's nothing wrong with a silica packet in your cardboard storage boxes, but that is more effective at resolving moisture to keep silver tails out of your boxes than it is at doing anything for the comics. The backerboard should handle any acid residue that is catalyzed by ambient moisture. If you have more moisture than that in storage then something else is wrong. Moisture issues on comics was widely resolved on a broad scale by bag and board storage.