Well it sounds like you know your Apple stuff. I don't think you would have a problem doing the things that you want and with a 10hr battery life I think the iPad would suit you perfectly......but what do I know!
There is lots of good advice and info on here plus plenty of members all too willing to help with any problems.
If you have other Apple products or are interested in other Apple kit then why not join our sister forum too at http://www.appleforums.net/
Finally, if you still haven't had enough, how about a video explaining about our other forums (note:you may want to play this at half speed but hey, why shouldn't Phil be excited about our forums!)