Add comment box to Magento checkout

I need a comment box added to the Magento checkout page so customers can add custom comments. This should be able to be installed though Magento Connect as an extension, not a modification of the core code. ## Deliverables * * *This broadcast message was sent to all bidders on Wednesday Sep 2, 2009 5:40:13 PM: This module should be very similar to the current gift message feature. The only real difference is that it should show up on the order in the backend (the gift messages might do this, I don't know) and it should not be titled Order Comments.