ecuador is incredible-went last december and march, and i'm going again at the end of february.
there is a new guidebook by yossi brain that is very good-much easier to use than the old brandt guide, though not as complete.
let me know if you have any specific questions. also, remember that chimborazo and cotopaxi are merely the most crowded mountains in ecuador-not the hardest, most fun, most adventurous, etc. i have lots of scanned pictures too, so i can email them if you like.
Its all A1 until you fall.
This isn't an office. It's Hell with fluorescent lighting.