Good choice on the tea!
I don't buy much groceries in bulk... I did buy some Annie's organic mac and cheese (though I hear the white cheddar is better), since it is very cheap and somewhat healthier (but not by much) than the Kraft variety. One of the best things I've ordered was these tins of salmon. Very delicious, great for a quick lunch. You don't even need to microwave it.
Oh, also, I'm considering buying a bunch of the granola cereal I eat in bulk. It's still somewhat expensive in bulk, but almond and dark chocolate granola is maybe my favorite snack ever and I might succumb.