guys .. i am interested to get an ipad 2 and have a few questions that hope you guys dont mind to clarify and assist.

1. Could i watch movies with rmvb format or file? if not possible, is there any apps that could?
2. for light office works and presentation, what is the most suitable apps for this? able to edit as well.
3. Is it worth getting a used unit?
4. I used to have an iphone4 but changed to BB now, does the end or escape button having as much problems as the iphone?
5. my purpose of buying this is just to do some light work, suft the net, play games and watch movies .. you guys think the 32G is enough?

thank you in advance.