Sainsbury's have a load of kitchenware items reduced by 1/3 or more instore.
They have an own-brand "Kitchen Collection Kitchen Machine" which seems to be the same as the Grundig UM9140, which uses accessories interchangeable with Kitchenaid. It was £199.99, now reduced to £99.99.
http://www.sainsburys.co.uk/sol/shop/appliances/appliance_sale/124903199_kitchen-collection-black-kitchen-machine.html?primarySku=125599230
http://www.amazon.co.uk/Grundig-Die-Cast-Food-Mixer/dp/B0078OJO9Y
There is a meat grinder (metal body) attachment available for £19.99 (was £29.99) and a pasta making attachment for £26.65 (was £39.99). I have no idea if they are any good, but they seem a bit cheaper than the genuine plastic Kitchenaid accessories.