I'm not sure if there the same.
But I think this is the one that's on sale in Argos (http://www.argos.co.uk/product/5589320) and dyson has it for offer on there website (http://www.dyson.co.uk/vacuum-cleaners/cylinder/dyson-big-ball/dyson-big-ball-animal.aspx) at £250
I found this on ao.com. it look's the same £249 plus add the code "EXTRA20" to take it to £229.
Look at the reviews on the ao.com page theres videos showing the hoover.it looks like it comes with a lot of tools and it works good.
I don't know how long the offer is on for but it looks like a good offer to me.