There was a Megham Darjeeling Oolong sent out as a tasting sample from TChing
which knocked my socks off.
It's available from TChing and I've also ordered some from Lochan Tea
The sampler pack from Lochan is $25 inc p&p and has a few Darjeeling Oolongs in there, I've got one on the way atm.
Keep us updated with any good finds.