As a fellow Vancouverite I'll tell ya, weather sealing is the ticket. And, lucky you, Vancouver has a large Pentax community with an equally large selection of used Pentax gear on craigslist.
If you've got $2000 to spend, I'd go a bit of a different route. If you are truly a newbie to the dSLR world, I'd pick up a used K30 or a used K-5 off craigslist.
Why?
1) Awesome weather-sealing
2) A K-5 can be had for $600 total a K30 goes for $450. This leaves you a lot more room for buying lenses! And, hey, no HST.
3) If you figure out that dSLR photography isn't your thing, you can resell it for what you paid for it.
So, a used K30 and a used 18-135mm goes for $850. That leaves you with another $1150.
Pick up a used Tamron 70-200mm f/2.8 ($650) that's like half the new price in Canada. And, since it's Pentax, you're looking at a stabilized 70-200mm!
Well, you now have an awesome kit. Oh, and you still have $500 to spend on camera gear. Pick up a 50mm autofocus prime (Used Fa 50mm f/1.4 = $250) and you're golden.
With that last $250 you've got in the bank, get yourself a nice camera strap, a nice camera bag, and a nice bullhorn to shout at your Canikon friends about the deals you got.
haha, just my thoughts