Wow. I know what I'm going to be doing with my gardening breaks fort the rest of the week (well, between cooking for two kids, reading Harry Potter aloud, and helping my kids spell things, make things and look up answers to questions beyond the scope of my practice -- life of a homeschooler.)
What a great resource page already, and I'm sure it will be added too. I must say though, I hope Chris comes to Colorado later this year with one of his seminars, because I'm finding myself stuck on the end-of-the-civilized-world preparations that seem evident in this list. I guess it's more resistance and denial, but I can conceive of a gradual decline being quite likely. I'm just not able to get to "we're going to need a year's worth of stored food and water purifying ability ASAP."
But I am going to go through these links and start making a list. Thanks for putting it together!

Well folks - finally - here is some of the detailed info compiled from the Lowesville seminar. I've included info from other sources (thanks to Leroy and Robyn) as well as what was shared at Lowesville among the participants. Some of the site links are duplicated across topics because the site has a wide variety of merchandise. I didn't do any price comparison site to site, but we have ordered from several of the sites and can vouch for the product quality.
Hope this is of use.
Food Storage Planning
http://www.providentliving.org/channel/1,11677,1706-1,00.html - LDS site. Calculator for amount of food to store based on the number of people in the family and the amount of time you want to store food for.
Food Suppliers
http://beprepared.com/- Great site for bulk, freeze dried and dehydrated foods, food kits, emergency kits, water purification, camping gear and supplies.
http://www.harmonyhousefoods.com/ - Great site for freeze dried and dehydrated fruit and veggies and Textured Vegetable Protein packs.
http://www.spiceplace.com/ - Good source for bulk spices
http://survivalacres.com/ - Great site for bulk food ordering, has a food storage calculator.
http://www.waltonfeed.com/ - Good site for bulk food, seeds, organics. Good resource tab for info and planning on storage, seeds, sprouting and soap making.
http://www.bulkfoods.com/default.htm - Great site, wide variety of bulk foods.
http://safecastleroyal.com/index.html - Great site for food and E prep supplies. One of the top emergency preparedness outfitters out there.
http://store.honeyvillegrain.com/ - Great site for grains, flour, fruits, canned milk, canned eggs, canned food and TVP.
http://www.foodservicedirect.com/ - Good site, caters to food service industry, but has a good selection of bulk cased food and food service goods.
http://www.internet-grocer.net/ - Great site for long term storage canned meats, cheeses, butter
http://dehydrated-food.net/ - Dehydrated and canned foods, MREs. Water purification, long term storage seeds, short wave radio equipment.
Food Storage
http://sorbentsystems.com/index.html
http://www.survivalunlimited.com/foodstorage/mylarsealing.htm
Equipment
http://www.stpaulmercantile.com/index.php - Great site for water purification kits, kerosene stoves, lanterns and heaters, family emergency kits and other E Prep equipment. If you use the link on the CM site a portion of the proceeds goes back to Chris to help run the site. This is where our stainless steel Doulton water purifier came from and it is a must have.
http://safecastleroyal.com/index.html - Great site for food and E prep supplies. One of the top emergency preparedness outfitters out there.
http://beprepared.com/ - Great site for bulk, freeze dried and dehydrated foods, food kits, emergency kits, water purification, camping gear and supplies.
http://www.basspro.com/camping.html
http://www.hurricanestore.com/kits.html
http://65.108.108.197/catalog/all_products.php?osCsid=772344ab9a902d0f8991a658869f3601
http://dehydrated-food.net/ - Dehydrated and canned foods, MREs. Water purification, long term storage seeds, short wave radio equipment.
MREs
http://www.mredepot.com/servlet/StoreFront
http://www.longlifefood.com/
http://dehydrated-food.net/ - Dehydrated and canned foods, MREs.
Disaster Preparedness
http://www.fema.gov/areyouready/index.shtm
http://www.fcs.uga.edu/pubs/current/FDNS-E-34-1.html
Water Storage/Purification
http://www.waterbob.com/Welcome.do - Large capacity emergency water storage.
http://www.doh.wa.gov/phepr/handbook/purify.htm
General Supplies
http://www.buythecase.net/