How do I print the indicated div (without manually disabling all other content on the page)?
I want to avoid a new preview dialog, so creating a new window with this
All the answers so far are pretty flawed - they either involve adding class="noprint" to everything or will mess up display within #printable.
I think the best solution would be to create a wrapper around the non-printable stuff:
Your normal page contents
Printer version
Of course this is not perfect as it involves moving things around in your HTML a bit...