Realistically, for Internet browsing & email you're not looking for much at all. It can be handled by even 'budget' orientated tablets for that matter.
An i3 + 4/6/8GB RAM would be more than sufficient for your needs, for a long, long time. An SSD would make everythng feel 'extra snappy' too, which is never a bad thing.
The Acer jaguarskx linked should be more than capable, but is a 5400rpm drive which is a bit disappointing, but not surprising at the pricepoint.