Tea? What kind?

Ok, so I drink too much diet soda. I keep hearing how bad it is for me, and I am willing to try and cut back on it. I'd love to give it up one day, but for now I just want to cut back.<br><br>
However, I do not want to get caffiene withdrawl headaches. I can't function then, and I will give in and have a soda.<br><br>
So... I understand tea is good for you.<br><br>
I hate regular tea. Like iced tea? Yuck. It tastes like dirty water to me. But I also know there are more teas out there, and some of them must not taste like crap.<br><br>
I don't really like hot drinks, so if there is something I can drink in a cold form, that would be better. I am mostly wanting to eventually give up soda because of the carbonation, which I keep hearing makes you puffy. And I could do with less aspertame.<br><br>
Any thoughts?