Nashbar has brand new 10 speed Shimano bar-ends on sale for $55 USD. They ship to Canada, but I don't know the cost.
I picked up two sets a couple weeks ago (they were $50 then).
Personally, I'll use the right Shimano shifter for 10 speed indexed/friction, and a Silver bar end for the left.
The Silver has a shorter lever throw for the same cable pull, so prefer them for shifting a triple crank. I don't like how I have to move the Shimano front shifter a full 90 degrees (which seems like it's past 90, due to the dog leg shape of Shimano bar end levers) to get to the big ring. With the Silver shifter, it's more like 60 degrees total.
Tim