I currently have a cordless Dyson that looks a bit like this [[http://www.amazon.co.uk/Dyson-Multi-Handheld-Vacuum-Longer/dp/B005D74498/ref=sr_1_6?s=kitchen-appliances&ie=UTF8&qid=1448534040&sr=1-6&keywords=dyson with a short nozzle]] I'd ideally like one like this [[http://www.amazon.co.uk/Dyson-Digital-Lightweight-Cordless-Vacuum-Cleaner/dp/B004JHXOGW/ref=sr_1_3?s=kitchen-appliances&ie=UTF8&qid=1448534040&sr=1-3&keywords=dyson with the long nozzle]] Can I just buy a longer nozzle to fit onto mine, or is there a fundamental difference between them?