You don't have to type product codes -- you can install without one and copy/paste from a text file works fine once you're all set up. You don't have to insert DVDs, Windows installs fine from a USB stick (except on Apple notebooks, so there). Installing Microsoft Security Essentials will shut up any AV warnings.
Besides, you don't even need to install Vista to get an upgrade copy of Windows 7 working. A Google search would have told you that.