iTunes is the software hub used to connect your ipad to your PC/Mac. You don't have to use it often unless you want to transfer pics/music/apps etc which can be a lot when you first you get the ipad.
If you have basic skills I would strongly suggest the ipad - it just works. The ipad mini IMO is the perfect travel size and weight, buy it here (Target/Big W are the cheapest) then get the GST refund when you go OS from the TRS counter at the airport after customs. Much better to get it set up here ready to go rather than opening it mid-trip and trying to get up to speed.