I just called around yesterday and got the following prices:
yard 1
Copper 2 $2.50
Steel $.07

Yard 2
Copper 2
$2.30
Aluminum Extrusions $.45
Steel $.09-.105

yard 3:
Copper 2 $2.33
Steel $210/ton (1000 lb min)

For websites with pricing in WA state, check out
http://www.westseattlerecycling.com/index.htm
http://www.earthworksrecycling.com/prices/index.html