I think about this stuff a lot too. My list of important stuff is as follows:
Tent (Water Proof & Fire Proof)
http://www.deluxewalltents.com/tents.htm
Tent Stove
Sleeping Bags (Water Proof)
First Aid Kit/Supplies
Flash Lights
All sorts of Lithium batteries
Guns & lots of ammo (Pistols, shotguns, assault rifles, rifles, ect.)
Fishing Pole/Lots of Fishing Line
cooking supplies
seeds
#10 freeze dried canned foods
http://www.mountainhouse.com/
BBQ Pit
http://www.youtube.com/watch?v=CtiS-...feature=relmfu
Water Filters/Water Purification Tablets
Waterproof Matches
Invest in Conceal & Carry Permits & invest in Passports (Passports are cheap & last like 10 years anyway)
Interesting video regarding hunting
I personally don't agree with the Denver location. Mainly due to the fact that it's so cold in Denver. We need to pick a place that is not near any nuclear Power Plants, Not in Tornado Alley, or close to huge bodies of water incase of hurricans or tsunamis. We need to pick a place that you can plants lots of crops in & somewhere for this farm to thrive. And in regards to the bunker in Denver, The fact that if the underground military bunker is real, there will be lots of military & they may or may not work with us. For all we know, they'll come out after the catastrafe & rob us of everything we have, who knows.