Amazon are offering a free Sony's VRC-NW10 Video Recording Cradle when you buy either a Sony NWZX1050B X Series 16GB MP4 Walkman for £164.99 or a Sony NWZX1060B X Series 32GB MP4 Walkman for £220.94. The 16MB is now out of stock, so you'd need to go for the 32GB.
As a bonus you also qualify for a 47% discount on the Sony MDRNC11 Open Noise Cancelling Headphones (see http://www.amazon.co.uk/gp/feature.html/ref=amb_link_84898153_1?docId=1000341483)
which would take the total saving over £100.
Note: The saving is deducted at the final stage of the Amazon checkout process when the postage is being added. You can still cancel at that point.