I know the portly ninja and since he is a fellow canadian all that extra padding is important winter insulation. I am a bit on the well insulated side myself.
I was going to do some WW2 reanacting but I ended up looking a lot more like Herman Goering than Otto Skorzeny.

You don't need to be that agile anyway if you have a Busse AK47 and a Wilson combat shotgun <img src="/ubbthreads/images/graemlins/grin.gif" alt="" />

I try to carry the least amount of gear possible. A canteen ,my SS4 and my CS Norse Hawk(with some modds) and a bic lighter and decent LED flashlight was my basic kit last year. This year I may try the DFLE instead of the hawk and I have a couple knives to try out in place of the SS4 including the YKCG ,Spyderco Mule and Chris Reeve Inyoni.

I spend a lot more time on my quad than on foot though.

As for clothing I like a mix of canadian army surplus and good hiking gear.
Wool is by far my favourite material. It is way better than cotton and even better than the best of the hi tech synthetics. You can get really nice fine wool that does not itch. It also works while it is wet unlike anything else.
I am also going to get myself a coyote fur hoody one of these days. They have the perfect camo for our area and are warm and light weight. I hope fur makes a comeback. Until you have worn it you really don't know what your missing. Especially in cold weather there is nothing better.

I am also getting another one of those coonskin caps with the head on the front to wear on my trip to london.