As for walking/running in the cold, our feet can adapt to this over time.  I just ran a mile completely barefoot over ice, slush and snow earlier today.  You just have to go a little at a time, pushing your edges each time.  My only regret is that I didn't start this earlier, although we have a solid month of winter left so I should be up to a couple miles in sub-freezing temps before the weather stays above freezing during the day.  Just make sure you don't run on surfaces that have been salted, as salt tears the shit out of your feet and makes the skin on your soles wear off very fast, leaving your feet raw after even a very short run.

As far as minimalist shoes, my favorite is the SoftStar RunAmok.  It looks like a moccasin, has a Vibram sole and passes both as a minimalist running shoe as well as a dress shoe if you keep it clean.  I presented some of my consulting work to clients a few days back wearing the same pair of shoes I run in, and no one even noticed the difference.  They're a great all-purpose minimalist shoe.

As for the biochemistry of silver, I can't speak to that.  The idea of wearing minimalist shoes that require some sort of chemical treatment to keep microbes in check doesn't appeal to me in the least.

Excellent question.  I hope someone who's close to him will chime in, as I have serious questions about the PhD he claims to have. 

I think learning to hunt or scavenge (on road kill) is the key to keeping costs down while eating well.  I hunt, gather roadkill, and also get lots of waste from local game processors, and end up with 150 pounds of free wild venison each year.  If I shoot a deer, I end up with even more (a 150 pound deer yields about 100 pounds of food) although hunting takes a lot of time so it's tough to call that meat "free".  You work for meat you hunt.

I probably spend $25 per week on food, though if I were to spend more time gathering I could get that down to almost nothing.  I'm really busy right now with school, so spending a little money on food to free up time is worth it to me.

Buying organs is a good way to stretch your dollar.  I get grass fed, grass finished beef, lamb and sometimes goat organs for $1 per pound, a reasonable price.  I occasionally buy eggs, but can't find them 100% pasture raised this time of year her in Vermont.  Price is $4.50-$5.00 per dozen right now, but that price will go down once summer comes so I'll just wait. 

Geoff (Handle:  TylerDurden) is correct.  Suet is unheated, tallow has been heated and processed.

On a more lighthearted note, Daniel Vitalis recently posted this video spoofing himself, David Wolfe and Matt Monarch and their involvement in a recent longevity conference.  I thought it was funny.  You might too.

http://www.youtube.com/v/-n-oE2otVJk?fs=1&hl=en_US&rel=0

How about just kicking your addiction, so you don't have to worry about it?

Phil has a good method.  I eat it straight occasionally, but most often chop it into little bits and mix it with meat.  It's quite easy for me to find suet from grass fed/finished cattle for cheap, so I buy it often and stockpile it in case the doomsayers are right and we fall on lean times.

Great video by a former raw vegan who's gone raw paleo.

http://www.youtube.com/watch?v=0cbhkUA5ySQ

The book has been sold.

I still have a copy of We Want to Live that I'd like to sell for $15 + shipping.

[edited on 11-15-2010 to reduce the price]

I hunt for deer, small game (squirrel, rabbit, hare, upland game birds), and turkey.

I got a deer last year during rifle season, but haven't gotten anything yet this year.  I saw a beautiful 8-point buck on opening day, and a smaller 4 point earlier today.  I didn't get a good shot angle at either of these deer, so didn't even try shooting them.  The 8-pointer probably weighed 220 pounds, the little guy I saw this afternoon probably around 160 pounds. 

I try to avoid hunting near farms, unless they're organic farms and do NOT raise grain.  Deer that grow up near farms inevitably eat lots of grain and soybeans, so the meat is about as low quality as grain-fed cow.  Not something I'm interested in.  Some organic farms around here grow only vegetables, and those farms I'd be willing to hunt on.

Still got a week of rifle season left here, and then a week of late season archery.  Hopefully I score at least one deer.

As for what I use, I hunt with a 6 mm Browning X-Bolt rifle using Remington CoreLokt cartridges with 100 grain bullets.  The rifle is bolt action with a scope, but I'd like to get a lever action rifle and learn to shoot instinctively, as you can get off a quicker shot with lever action and just steel sights. 

During archery season I hunt with a wooden bow that I make myself, as well as wooden arrows that I make.  I'm big into primitive skills, so make much of my own archery equipment, including quiver, bows, arrows, etc.

I was making sweeping generalizations, of course.  The point I really wanted to make is that what we do well on over the short term may not keep our bodies healthy over the long term, and that the diets we eat are an experiment that could fail.