Amazon.co.uk are the latest site to join in on what seems to be a rapidly growing market which is online DVD rental. The new rentals section is now available. There are 2 subscription flavours at the moment:

Monthly limit DVDs at home at a time Price per month (including VAT)
6 3 £9.99
4 2 £7.99

Seems like quite a good idea, though, as a side thought Amazon will now have a huge distribution network even bigger than before and more stock.