I actually order the Fairmont black tea (Tea at the Empress) from the Fairmont store and usually grab a few teabags for the road when I stay at Fairmont hotels. I never thought I would pay exorbitant prices for merchandise on a hotel website, but... I do.

They have a decaf blend, and while I haven't tried it, all of their other teas are very good. I'd give it a shot. They have loose tea and teabags, and apparently they went to a lot of trouble to produce a drinkable decaf.
http://www.fairmontstore.com/product...emID=FM-501-WS