Ten Ren Tea of Seattle

This is my favorite place to buy two types of tea:
1. Lapsang Souchong, a wonderful tea that is strongly flavored with pine smoke (by actually burning pine boughs underneath the tea leaves while they are drying, I've heard)
you can get this in any amount in bulk at a very reasonable price, and they actually seal it in a bag for you so it will stay fresh until you're ready to drink it.
2. Golden black tea: this one is available pre-packed in small plastic bags priced at $1 and up depending on the grade of the tea. I usually buy the cheapest which is a very good deal and tastes great.
They also have a good selection of other Chinese/Taiwanese teas at prices varying based on the grade of tea.