No worries, the binders are 3 ring binders, just like we used in school. They open up and have plastic sheets in them, that's where people put the pins, in the sheets. Kind of similar to trading cards.
The bags are what you want, the pirate and jack bags were about $50, the smaller ones are less. The bags zip up, when you unzip them there are felt "pages" inside with a velcro closure, you can put your pins in there using backs to secure them or you can buy cork and simply push them in, that's how ours are. We bought cork sheets at Target and Wal-Mart, cut them to fit and slid them inside the felt pages, now we simply push our pins into the cork and we never lose them.

There are 4 pages of felt, you can put pins on both sides. If I remember (and have time) I'll take a picture tonight and post it for you.

There is a piece of clear plastic between each piece of felt so your pins don't bang against each other and get messed up. The pirate bag also has a small zipper area under the front flap (so does my Jack bag), and there is also a mesh pouch in the bag itself. I have issues posting pics here sometimes so if I can't do it I'll PM you and I can email you the pics.