What we need here I think is an option to have image and attachment previews at topic reply screens as well. :P
I am often confused when I write a reply to someone else's work and can't see what I am commenting on. Sure I can open it beforehand or even download it but... well...? :P
I know what you mean. I would like to be able to see it when Im writing too. usually I have to browser windows open, one for writting and one for looking.
I do what Badger does.