Tablet for browsing, emailing, CV editing while travelling?

I'm off travelling for a few months (Not backpacking, but hopping between different houses in the UK), and I need a replacement for my computer. I'll mostly be using it for browsing, emailing, and updating and sending my CV while looking for work. I'd also like to lightly use it for watching films and transferring music onto my iPod.

I'd like 3G, but it's not compulsory. If the tablet isn't 3G enabled, then the ability to tether to my phone's 3G is good. I'm open to suggestions if anyone thinks that a laptop or smartphone would be better, but practicality and portability are essential. My budget is up to £330, and I don't mind going 2nd hand.