If you have any caffeinated teas that you like, you can easily decaffeinate them by steeping them for 30 seconds, tossing out the water, and then brewing the bags normally, as the majority of the caffeine is released in the first 30 seconds of brewing.
I probably drink far more tea than anyone else; whether at work or at home I am never without a huge mug of it (even when I'm driving to and from work). I have been trying to cut down on the caffeine, too, so I've been drinking more herbal teas, but since I have such a humngous stash (I have two cabinet shelf fulls) of non-decaf tea, I've been slowly going through it using the decaffeinating method.
I'm currently on a chai kick. My favorite is <a href="http://www.tealuxe.com/cgi-bin/teacatagory.pl?abbrev=ch&x=30&y=4">spicy chai</a> (bottom of the page) from <a href="http://www.tealuxe.com">Tealuxe</a>. (Tealuxe has a GAZILLION really really great teas. For example, I haven't found a Jasmine tea in a store that is as great as their <a href="http://www.tealuxe.com/cgi-bin/teacatagory.pl?abbrev=me&x=19&y=13">dragon pearl jasmine</a>)
In the boxed teas, decaf Tazo chai is probably my favorite, but if you make Celestial Seasoning's Bengal Spice tea extra strong, it is really good (and caffeine free), too. I think I've tried about every other supermarket brand of chai (Yogi Black Chai, Yogi Rooibos Chai, Numi, Trader Joe's, Uncle Lee's Green Tea Chai, uhmm... I know there are more I'm forgetting) and they're all fairly similar.
If you like the english toffee tea (I don't really you might like the gingerbread spice that celestial seasonings makes.
Anyways, I really recommend that you look at <a href="http://www.tealuxe.com">Tealuxe</a>. There are recommendations etc. on that site, the prices are good, and if you want to order jut a teensy bit to see if you like it, you can orger it in amounts as small as 10 grams. Actually at the moment I'm having their <a href="http://www.tealuxe.com/cgi-bin/teacatagory.pl?abbrev=me&x=19&y=13">throat tender</a> tea, to see if it's better than traditional medicinals <a href="http://www.tealand.com/ThroatCoat.asp">Throat Coat</a> (which I like better than Nature's Flavors <a href="http://www.naturesflavors.com/product_info.php?products_id=3161">Throat Formula</a>). It seems like a toss up so far.
Another thing I like to do is go to a store that sells herbs in bulk and just make my own teas. I buy stuff like chamomile, rose hips, willow bark, gotu kola, lemongrass, hyssop, valerian, yerba mate, etc etc etc, sort of pick your favorite ingredients and make up your own teas :) You can also make your own chai really easily. I buy those really inexpensive spices you get in the spanish section of the supermarket (<a href="http://www.cubanfoodguy.com/badiavariety.htm">Badia</a> brand) and then you just mix and match what you like and just boil in water for a while :)
Since I also don't use sugar anymore, but sweetening is kind of integral to some teas ( like chais), I use stevia instead. It doesn't have a bad chemical aftertaste like saccharine or aspartame or even sucralose. I use <a href="http://www.unikeyhealth.com/products_weightloss_steviaplus.asp">Stevia Plus</a>, which also has fiber (water soluable, you never knwo its there) in it. 4 packets of it apparently have the same amount of fiber as a bowl of bran cereal. It's a little expensive, but I figure it's worth it.
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