Thanks to one of our moderators... (TIM) I was made aware of a company that sells aftermarket 1800Mah batteries for the 20D for about 4x lower than the OEM Canon battery. Heck, that was sooo cheap, I got a pair. Now when I start shooting weddings, I'll have enough juice to bring for the day. And should I add the grip, I have the matching pair of 1800's. I'm obsessive compulsive like that.
. The name of the company is www.sterlingtek.com
two brand new 1800 batteries for less than $30.00 shipped. How can you beat that?

I shoot weddings with two 20Ds, I have 4 batteries right now (or so - can't remember) and I start to get a bit low on power, so i've ordered another 4 or so from the same place.
