£248 for the 564 (pet model) and comes with remote control and spare brushes - at least a hundred quid cheaper than elsewhere. Think the deal is today only but not sure!
www.groupon.co.uk/deals/london/ElectricsWarehouse/454088?nlp=&CID=UK_CRM_45_0_0_0&utm_source=Deal_general_newsletter&utm_medium=All_Cities&utm_content=Initial_Version&utm_campaign=Varies
Not affiliated with either, but I've wanted one for ages but could never quite justify the cost. Just had DC3 and am drowning as he nurses 24/7 so I figured what the hell.. DH begrudgingly agreed but I am hoping it will win him round.
Now we just have to name it 
Hope this helps someone!!