Thanks for the replies everyone.
I finally decided to get the Kobo Touch, as I could not afford the Sony, much as I would have liked to. However, so far I am very happy with the Kobo, so don't feel too sad about it. It's very nice to have a touch screen, I much prefer it to the Kindle's interface. I hope I don't regret my purchase. Maybe one day I'll get the Sony
Thanks, everyone.