The problem I have with green tea is the taste. I'm not exactly the biggest fan of the taste, so I usually have to either supplement with green tea extract or mix in other things in the tea to make it taste better.
I've recently come across a bottled iced tea that tastes pretty damn good. It's the Diet Lipton Green Tea with Citrus. If you want to get in some green tea either to help boost you metabolism and help your fat loss efforts or just want to get it in for it's anti oxidant properties I highly recommend trying it.
You should be able to find it at your local grocery store for about a buck and change. Make sure that you get the diet version though. They have bottle that looks similar but has added sugar.