Archive my software

Ok... here we go:

In a couple of days (most likely on monday) I'll get a new motherboard and new ram. Since I have to re-install everything, I wanted to know if there is a way to archive *all* of the software that I have installed through Impulse.

I know that I can select every single application (game/tool/desktop stuff) and put it into a single archive, but is it possible to archive them all at once?

Thanks for your help,

Mirau