Shipping is already included. You get 25% off due to exchange rate. Shipping cost should make up for the difference overall. If you buy something $100 CAD you should spend something like $100 US in the end.

I work in an office, have to dress well, and for years I've been doing the ol' ride-an-switch thing. I even have a wardrobe at work for my dress slacks and shirts, which I would bring in on the weekend.

Just recently, I switched bikes to an upright, and have been riding to work dressed to the nines. I don't at all miss having to change clothes a couple of times a day.

Plus, I look fabulous.

I like Endura Hummvee (sp?) 3/4 length MTB baggies for commuting and if you want they make the same style as pants and shorts. these use a clip in liner so you can wear them with or without padding. My commute is mixed bike/rail and work is casual so I just wear MTB baggies for commuting.
I also got a pair of Zoic convertible pants one time, but my knees were too big. I also sometimes use hiking pants, and rain paints outside for bad weather. Rivendell's MUSA pants would be worth a look too.

Not trying to be argumentative because I'd like to order from MEC, but they're site says free shipping within Canada

Yep if you're in Canada. If you're in the US it isn't, it's 19$ (i guess $19 CAD or $14.75 US at current exchange rate) + import duties if ever + a few box for $US to $CAD credit card conversion fees = somewhere between (min $16 US, max maybe $40 US for a $100 CAD purchase)
http://www.mec.ca/AST/ContentPrimary...mation.jsp#usa


Which means in the end, if you buy something $100 CAD it should cost you between $91 US and $115 US

Hmmm... this could be dangerous!