The only shortcut I could remember was "Shift+O" to resize artboards all at the same time. Had to do a search on the topic and up came most of the commands for the artboards here: http://krankykids.com/cheatsheets/il...artboards.html
Hope that helps. The only time that I seem to use multiple boards is for a PDF doc. and to be honest I tend to use ID for that job as the PDF's are much more reliable. The other time is when I am doing Biz. templates for a biz card, letter head, invoice......etc. for a company and that doesn't happen often now.