Congrats! I picked up tea drinking last year and it has become a great afternoon ritual.
Honestly, Bigelow Green Tea is the best of about 10 green teas I tried. Not the organic one, the regular one. Joe Torre would be so happy.
I like Lipton Black Pearl pyramid bags as my daily black tea. It's a very tea-flavored tea. I will try the PG bags next time I buy tea, though my local supermarkets don't seem to stock it.
Teas' Tea, which I discovered from other FOTs, is a very good tasting bottled tea. Expensive, but no calories and delicious. The Oolong is the best for my money, then the Rose Green. Jasmine is also good.
I bought some Marriage Freres (supposed to be the best tea in the world) and Harney and Sons from Williams-Sonoma. They are both very good - bolder and stronger, with a more distinctive flavor. But I don't have time to make loose-leaf tea every day. And they are $17 and $12, respectively, for a canister.
One thing it took me a while to learn - tea is much better if you brew it slightly shorter than you think. Green tea bags about 90 seconds, black tea bags about 4 minutes. The bitterness comes at the end of the brewing.