RE: I'm looking for a good, big backpack.
Another vote for the fieldline pack. I paid more than that but for the $39 or so it was a steal. This year they changed the pack a bit so it isn't the softer low nap fleece like mine but it is still a fantastic pack.
The fanny pack is detachable, has a nice thick padded waist strap, chest strap, camel pack, and tons of accessory pouches. I carry waaaay too much in with me most times and I have room for a thermos, tons of calls/steps/knives/full insulated coverall/etc. I also zip tied my kwikee bracket to the waist belt and wear my quiver there and it is almost identical to the way Michael Waddell wears his. I love this pack and it really works awesome..........the badlands are nice but mine doesn't leave me with desiring anything else and I really use mine a lot. Unless we are driving or small game hunting I don't go in the woods without it.