1st post so bear with me,
Argos currently have an offer on whereby if you buy a Sony MP3 player, you get £100 off the Sony speaker dock. According to the picture it looks like the CPF-NW001 model.
This dock is already reduced by £100 so when you add it to your basket you get it for free! After looking around this dock by itself is selling for £150 upwards on other sites! So you can buy the £59.99 MP3 player and get the dock for free!
The dock is for the NWS7 series but might be of use to someone.
Product Code for the dock is 534/6790