Moon, Webcam and Laptop, oh my!

I've been reading alot in the Stargazers Lounge forum (http://stargazerslounge.com/) about using some software to stack images (or frames from videos) to get more detailed pictures, so I'm going to give that a go. Only (good) thing is: I don't use Windows. I'm a Kubuntu Linux kinda guy. So I'm going to have to find some Linux astronomy software. Shouldn't be too difficult. Worst comes to the worst I can get Registax 6 running in Linux via Wine.