I will be doing my first overnight trips this year. I already have a 1-man tent, sleeping bag, pad, stove, etc. I have a few smaller items to procure yet, but we're getting there. I am not demanding the lightest gear out there, but I don't want heavy (i.e. milsurp!)

Question is, how big of a pack do I need for such a trip? I read that 4000" is the minimum. Others suggest something bigger in the event I do some cold weather trips. If this helps, I'm an Osprey fan when it comes to packs, but am not afraid to try other makes as well.

I welcome any and all comments. Thanks.