Good call flaps.
I'd upload everything to goodreader via iTunes (connect pad, click on apps section and scroll to bottom) or via drop box (connect to server in goodreader) then when you open the manual you want click the send email looking link and in there is an option to "open in" to send it to iannotate. But not too much work on Christmas day! Another tip, go to vuze, type iPad and download '630 (or so) books for ipad' file and transfer to the pad... Some good reads.
Other goodies... Mobile Mouse - use your pad as a keyboard and mouse for computer.
VLC Player - Saves reformatting movies, just drag and drop like goodreader.
Numbers - Mac version of excel, really good.
Enjoy!!