I'm looking to insulate my partially finished attic. It is a walkup third floor with two guest rooms and storage in the eves (if I've got the terminology correct, I am referring to the space where the roof meets the walls). We live in the Northeast. Obtained estimates on the foam insulation (both closed and open cell), but in addition to concerns about mold, bugs and wiring/access issues, the cost was prohibitive ($3,000). I am looking to install fiberglass on the rafters and lay fiberglass on the floor in the storage area, but need some guidance as far as do's and don't's, since the ventilation issues are sort of overwhelming. Any suggestions on how to books or resources?