What tablet/NetBook/kindle

[Matt]

Basically I'm looking at a tablet sized thing.

I want to be able to go on interwebz view forums/eBay/google/porn
Mainly the reason I want one is for books.
Want to be able to store pics/videos

I have a laptop for work stuff but the tablet is for fast browsing.
It must be able to be able to read books while not connected to Internet.
Must be able to connect to wifi.
Needs at least 10hr battery for long journeys/being at work


Originally I'm looking at the kindle fire hd or nexus 7.
Anyone have experience with either? Or suggest some better while still in the same price range?