Where to upload stock video and photos?

I have a couple video clips I took in Miami from the 31st floor on South Beach with the EX1. Where should I upload them to sell as stock? I have looked at iStockPhoto, as I am a customer there. I would like to know what everyone else has looked to as another option.

They aren’t the best shots in the world, but some are fairly cool. It was more of an experiment to blog about the experience of being a DP, taking some shots and trying to upload them. Thougths?