I've been looking at this too. I've been advised to avoid Homebase/B&Q/Wickes/Magent and go to http://www.diy-kitchens.com/?gclid=Cj0KEQiAtri0BRDLoaCF95e7o_sBEiQA_pgRQ6HEov0wojRr3VPEcE4ZQrLtpcAyyB666dfPHomerXYaAi8P8P8HAQ or ikea and get a local fitter.