I've suggested this feature before but Alex never got around to it so I thought I'd give it another try.
I would like to be able to use my Nextgen Gallery images in my posts. But i don't like the limited options. I have my wordpress media sizes set up to match my theme and would like to be able to use the image sizes defined i wordpress (thumbnail, medium, large) and the other image options available (description, title, link).
If nextgen is to replace the built in gallery functions this would be a great help. As it is now I have to upload media I want to use in my posts and pages (as single pictures) twice.