I guess were to busy kayaking to get any beta!
Whistler/Squamish is an area you want to hit, last weekend Callaghan was very low, we didn't run it. Everything is lower this year we had a great snow pack but July was pretty hot. Most river(glacier fed) in Whistler come up again with hot weather. Slickhorn has link to some rivers in the area.
The Ashlu festival is August 24-27, here's the website http://www.whitewater.org/squish/ash...tival_2006.htm
If you talk to raft guides(some are kayakers) in Whistler and Squamish they'll point you in the right direction.
You can do a mutliday fly-in trip to the Stein(Whistler Air) or you can hike into the North Stein if you don't want to pay for the flight here's some beta
Here's another website with some beta of the area
Hope this helps,